national house ballot

Dems take largest generic ballot lead since March 29th

by: Chris Bowers

Mon May 24, 2010 at 16:03

Gallup and Rasmussen have (finally) started releasing their weekly tracking poll results on Monday, instead of Tuesday, allowing for a generic ballot update today.

Today’s update shows Democrats ahead by 0.54%, their largest advantage since they held an edge of 0.68% on March 29th.

Generic Congressional Ballot, May 24th: Democrats +0.5%
Polls from here and here

This is good news for Democrats, but also only represents a swing of only 2.0% in their favor from the largest Republican advantage in my averages.  This is really is only a slight improvement, not a dramatic one.

In light of today’s discussion on surveys that do not poll cell-phone only Americans, it is worth noting that, according to Pollster.com, Democrats do 2.0% better when looking only at polls that include cell-phone only users.  Pollster shows Democrats leading by (1.4% when looking at all polls, and leading by 3.4% when looking only at polls that definitely include cell-phone only Americans (I used the list Nate Silver provided this morning).  

It is also worth noting that Rasmussen generates an overall swing of 1.41% in favor of Republicans.  Without Rasmussen, Democrats lead by 1.95% in my average,  pushing the average to Dem +0.54% from Dem +1.95%.  Pollster.com shows a 0.8% swing in favor of Democrats without Rasmussen.

I don’t really know what to do with Rasmussen polling at this point.  Rasmussen is clearly outlying from other polling, which is a big problem given that it produces a huge percentage of polling public polling on Senate, Governor and House campaigns.  One thing I am not going to do is tweak Rasmussen polling, by leaving it in the averages but adding 6% (or so) to the Democratic candidate.  Either I will continue to include Rasmussen in the averages with no tweaking, or it will just be dumped from the averages altogether.  The best solution is probably just to produce polling averages both with and without Rasmussen numbers, with the former still receiving the topline credit.

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Generic Congressional Ballot, May 18th: Democrats retake a narrow lead

by: Chris Bowers

Tue May 18, 2010 at 12:35

Democrats have taken the lead in the generic congressional ballot average for the first time since April 7th:

Generic Congressional Ballot, May 18th: Democrats +0.2%
Polls from here and here

Overall, this is a 1.7% improvement for Democrats since their April 21st low point.  Republicans had gained 1.7% in the thirty days before then, which were the first 30 days since the passage of health insurance reform.

It should be noted that 1.8% is the median amount of error for this forecasting methodology, so this is not actually a significant amount of movement yet.  All of the movement over the last two months could very well just be random fluctuations within the margin of error.

Perhaps more notably, at Gallup’s 2010 election preview event today (follow it on Twitter at #gallup2010), Jeff Jones produced a chart that projected seats in the House of Representatives based on the Generic Congressional Ballot.  According to Jones, if Democrats received 50% of the two-party vote, as the current average projects, they would win 234 seats and maintain control of the House of Representatives:

Projecting seat totals based on Generic Congressional Ballot

This model from Jones suggests that a swing of 7% in the national two-party Congressional vote could result in a net swing of 64 seats in the House of Representatives.  While that seems extremely wide for only a 7% shift, from 2004 to 2008 the Demcoratic share of the national two-party Congressional vote swung almost precisely 7% (from 48.6% to 55.6%), and Democrats gained a net of 54 seats over those two years.  So, perhaps Jones is exaggerating a bit, but not by much.

What this means is that even small shifts in national vote preference can make a huge difference in the final result.  If Democrats were to improve by 3%, they could keep their majority at close to its current size.  By contrast, if Republicans were to improve by 3%, they would be able to take control of the chamber.  At a rate of eight seats for every 1% shift, there is a lot on the table even with small fluctuations.

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National Congressional Ballot: Dems inching up

by: Chris Bowers

Mon May 17, 2010 at 11:25

Don’t look now, but Democrats have gained over 3%, on net, in the generic congressional ballot on Pollster.com since early April:


My own numbers don’t show quite as dramatic a swing, but Democrats have still gained 1% over the last month (from down 1.3% to down 0.3%), with more likely to come by the end of the week:


The average since April 22nd has Democrats up 0.56%, gaining almost another 1%.

There have been rumored Democratic comebacks before, all of which quickly dissipated.  However, this recent rise is the largest Democratic net gain since the September improvement of last year.  There are also good reasons to think this improvement will stick this time, as the economy continues slowly to improve (even though it is still nowhere near full recovery, there are indications that the relative direction of the economy is has more impact on electoral outcomes than the its absolute condition.)

At least for 2010, Democrats have likely already hit their low point, and won’t see the electoral environment become any worse than its current state.  As such, Democrats should maintain a narrow advantage in the generic Congressional ballot from here on out, and thus keep narrow control of the House after 2010.  A prediction like that might make me look foolish in November, or even in just a few weeks, but it is fun to go out on a limb every once and a while.

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Democratic electoral situation improving, but not enough yet to call it a trend

by: Chris Bowers

Wed May 12, 2010 at 18:49

Update: Title fixed. Apologies–my editor is a sucky blogger.

****

There seems to be some buzz that the 2010 elections are looking up for Democrats lately. For example,  even right-wing pollsters F&M; and Rasmussen shows Joe Sestak making the Pennsylvania Senate campaign competitive.  Even while a divided Democratic field is likely to result in a Republican win in the HI-01 special election, the Democratic candidate in the PA-12 special election surprisingly seems headed to victory.  Also, both PPP and Rasmussen show Elaine Marshall within reach in the North Carolina Senate campaign.  Further, earlier today PPP also put President Obama at his strongest job approval numbers since October.

There are indeed glimmers of hope out there, but the broad indicators do not yet show enough movement toward Democrats to suggest a trend.  Over the past month, Democrats have gained about 2% net on Republicans in the national generic congressional ballot, while President Obama has gained about 3% net in job approval.  Here are the six month trends from Pollster.com, removing Zogby interactive polls from the mix:

Six month trend, National Generic Congressional Ballot

Six month trend, President Obama job approval

The electoral environment has been pretty stagnant over the past six months.  This recent 2-3% improvement for Democrats could be the start of an actually upward trend of Dems, or it could be yet another small, possibly random movement well within the margin of error for polling averages (which is, according to my research, 1.8% total error at 50% confidence, 6.0% total error at 95% confidence).

Even if the electoral environment is static (and it probably is), it does at least feel like there is more to be optimistic about as a Democrat lately.  The Republican rise has at last been stopped, the economy probably is going to keep slowly improving, primary challengers are making things interesting for both parties, and legislation, however watered down, is starting to pass.  It all lacks the epic feel of the 2008 elections, or of the health insurance reform fight, but it also lacks the apocalyptic feel of the special election for Massachusetts Senate. It seems likely that Democrats have already hit rock bottom, and 2010 will only keep getting better from here on out.

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Economy growing, but it isn't helping Democrats

by: Chris Bowers

Fri Apr 30, 2010 at 13:30

After posting a 5.6% growth rate for the final three months of 2009, gross domestic product grew by 3.2% in the first quarter of this year:

The economy grew 3.2% in the first quarter of the year, the Commerce Department reported Friday, another indication a steady, though modest, recovery has taken hold.

The annualized rate of growth of the gross domestic product — the nation’s total production of goods and services — was down from the 5.6% rate of the last three months of 2009. But that had been expected as the effect of the federal government’s stimulus policies peaked during that period.

“We’re still running on the fumes of stimulus in the U.S. economy,” said Diane Swonk, chief economist at Mesirow Financial in Chicago. “It’s a recovery, but by any standard is still a muted recovery. But we’re thankful to have what we’ve got,” given the depth of the recession, she said.

While this seems like decent growth,, it is not helping Democrats.  Looking at the two broadest measures of the electoral environment right now, Democrats have actually dropped a net of about 7%:

National House Vote: When I first introduced the national House Ballot monitor on October 29th of last year, Democrats led by 5.3%.  Last week, using the exact same methodology, Republicans were ahead by 1.4% (I have been unable to update the average this week due to travel, but it would not have been much different).

President Obama job approval: According to Pollster.com, President Obama’s job approval is currently net positive by 0.4%. At the beginning of October, when this period of growth began, his approval rating was a net positive of roughly 7.5%.

If an opposition party is gaining about 1% a month on the governing party during a period of economic expansion, as is currently happening in the United States, that economic expansion is clearly not benefiting all that many people.  Whether it is due to continued foreclosures, high unemployment, stagnant real hourly wages, a loss of retirement savings, or all of the above, most people do not feel their economic situation is getting better.  The polling situation is all the evidence needed to demonstrate this: if the majority did feel like the economy was really recovering, then Democrats would be recovering, too.

If Democrats do get whitewashed in 2010, as is seeming increasingly likely, it will be because they failed to to improve the objective economic conditions facing the majority of the country.  This is not an area of politics where spin plays any meaningful role. People don’t need talking heads, or blogs, or press releases, or even Presidents to tell them if their personal economic situation is improving or not.  If anything, politicians who claim that the economy is improving when most people feel it is getting worse just look out of touch, ala John McCain claiming that the fundamentals of the economy were strong the day of financial crisis.

The job of a governing party is not to tell people that things are getting better, but to actually make them better.  Right now, democrats do not seem to be getting the job done.

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Post-hcr, Republicans gain 1.7% nationally; undecideds plummet

by: Chris Bowers

Wed Apr 21, 2010 at 11:00

The House of Representatives passed health reform one month ago today.  At that time, Democrats led the National House Ballot 41.87%–41.65%.  Now, one month later, with an entirely new set of polls, all of which have the majority of their interviews conducted post-hcr passage, Republicans lead 44.92–43.44%.

This represents a net 1.7% shift toward Republicans since the passage of health reform.  That is a modest, though not insignificant, improvement.

While Democrats did not receive a lasting post-health reform boost in polling, I am sympathetic to the argument that Republicans would have gained even more if health reform had not passed.  Admittedly, that argument is based entirely on hypotheticals and speculation, and cannot be proven.

Perhaps even more striking than the net Republican gain is the decline in undecideds.  Both Democrats and Republicans have actually seen increases in their raw support–Republicans just gained more.  Overall, the number of “undecided” or “other” voters declined by 4.84% over the past month, or nearly 30% of all “undecided” and “other” voters.  Not unlike a Presidential election, the health care reform fight pushed people into one camp or the other.  It made people pick sides.

Here are the polls used for the calculation.  They are drawn from Pollster.com and Polling Report.  The methodology can be found here.

National House Ballot, April 21st: Republicans +1.5%

This is not an insurmountable deficit for Democrats, at all.  With just a 5% net national swing, they would be back firmly in command of the 2010 elections.

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FL-19 results suggests slight GOP national lead; House control now a toss-up

by: Chris Bowers

Wed Apr 14, 2010 at 12:30

Democrat Tom Deutch won easily last night in the special election to replace Robert Wexler in Florida’s 19th congressional district.  However, the enormous margin is not actually rosy news for Democrats nationwide.  Here is why:

Florida 19 Cook PVI: D + 14.8
This is a very blue district.  Given the results of the 2004 and 2008 elections, Democrats would be expected to win this seat by 29.6% (twice the PVI) if the national margin was precisely even.

Florida 19 Result: D +26.9
Duetch won last night by 26.9%, or 62.1%–35.2%. However, Kerry won this district 66%–33%, and Obama won 65%–34%.  So, Duetch slightly underperformed Democratic presidential candidates in this district.

Perhaps the district is trending redder, as Obama underperforming Kerry would suggest.  Perhaps this is still a good result for an open seat campaign.  Or, perhaps this suggests that Republicans have a slight lead in the National House Ballot.

I am going with the latter.  This is because my latest numbers on the National House Ballot, updated today, suggest that Republicans have taken a small lead:

US House of Representatives: Republicans +1.3%
Toss-up for overall control
Weekly trend: Democrats down 1.6%

Even if all of the various “questionable” polls are removed (Economist because it is Internet, Daily Kos because it isn’t exactly a generic ballot, plus all of the Republican leaning polls), the result doesn’t change at all.  Republicans still lead by 1.0%:


As Nate Silver discussed last Friday, Republicans will likely need to win the popular vote by 2-3% in order to win control of the House.  Given that Republicans have edged back into a lead in the national popular vote, and that these polls tend to underestimate Republican strength, control of the House of Representatives is now a true toss-up.

It’s good that Democrats won the special election last night.  However, trouble still looms on the horizon.

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International House Ballot, April 7th: U.K. and U.S.A.

by: Chris Bowers

Wed Apr 07, 2010 at 01:20

Tonight, and for the next month, the National House Ballot goes international.  Until the election on May 6th, I will feature the latest polling on the UK House of Commons alongside the national ballot polling here in the United States.

Here are today’s numbers (methodology):

UK House of Commons: Conservatives +7.7%
Projected hung parliament
Trend: Conservatives up 0.1%


Even though the Tories are favored to win a plurality, Labour and the Liberal Democrats combined still hold a commanding edge on the Tories.  Were that the center-left still clearly ahead in the United States as well.

Unless there is a noticeable shift in the share of the vote for Conservatives (either up or down), it’s going to be anarchy coalition forming time in the UK.  The margin is close enough that a Lib-Lab coalition would likely need the left-wing Respect, and / or some combination of the various nationalist parties, in order to form a government.

Fourth and fifth parties are really on the rise in the UK, receiving a record 9.3% of the vote in 2005.  They might form a part, however small, of Her Majesty’s Government in 2010.

US House of Representatives: Democrats +0.3%
Projected narrow Democratic hold
Trend: Democrats up 0.2%

The margin in this campaign has not shifted more than 1.5% in either direction in four months.  That is remarkable stability compared to the epic pitched battle over health reform, which saw several wild swings of momentum since early December.  Once again, that makes me think that health care will not be a major factor in this election.

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National House Ballot Update, March 30th

by: Chris Bowers

Tue Mar 30, 2010 at 17:15

Today’s update: Democrats +0.1%
Last week: Democrats +0.7%

With the arrival of new generic ballot polls from CNN, Gallup and Rasmussen, the National House Ballot is now almost precisely tied.

One bright spot for Democrats is that the median of these polls is more favorable than the mean.  Fourteen of the twenty-six polls show Democrats ahead, by a median of 1.5%.  The disastrous results for Democrats in Rasmussen polls throw off the mean a bit.  The mode actually shows Democrats ahead by 3, with a Republican lead of 3 being the second most common result. A numerologist might make something of that.

The other good news for Democrats is that, even though virtually all polls have switched over the registered voters from “all adults,” Democrats have not lost any ground in two months.  We might be at the low point of Democratic electoral fortunes right now, with an improving employment situation ready to start sending it upward.  Then again, switchover to likely voters in September could send Democratic chances down even further.  Much of that depends on if the enthusiasm gap narrows or not.

National House Ballot, March 30th: Dems +0.1%
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Mar 30 43.31 43.23
CNN Reg. Voters Mar 27 45 48
Gallup Reg. Voters Mar 25 44 47
Rasmussen Likely Voters Mar 25 39 46
WaPo Reg. Voters Mar 25 48 44
Daily Kos Reg. Voters Mar 24 48 42
Economist Reg. Voters Mar 21 47 42
CNN Reg. Voters Mar 20 45 48
Quinnipiac Reg. Voters Mar 19 39 44
Gallup Reg. Voters Mar 18 47 45
Rasmussen Likely Voters Mar 18 35 43
Daily Kos Reg. Voters Mar 17 47 44
DCorps Likely Voters Mar 17 44 43
Fox Reg. Voters Mar 17 38 42
Economist Reg. Voters Mar 15 44 45
NBC / WSJ Reg. Voters Mar 13 45 42
PPP Reg. Voters Mar 13 43 46
Gallup Reg. Voters Mar 11 47 44
Rasmussen Likely Voters Mar 11 35 45
Daily Kos Reg. Voters Mar 10 46 43
On Message Likely Voters Mar 10 36 37
Economist All Adults Mar 08 45 39
AP-GfK All Adults Mar 06 44 38
Gallup Reg. Voters Mar 04 47 44
Rasmussen Likely Voters Mar 04 37 44
Daily Kos Reg. Voters Mar 03 45 42
Economist All Adults Mar 01 46 37

Methodology

A couple of housekeeping notes:

  1. Gallup is now releasing a regular tracking poll every Tuesday, just like Rasmussen. The other two weekly tracking polls, Daily Kos and the Economist usually release late Thursday or early Friday.  As such, the National House ballot will now be updated on the front page twice a week, on Tuesday and Friday afternoon.

  2. A seat-by-seat House forecast will be updated every Tuesday and Friday, along with the National House ballot, starting on April 20th.
Finally, don’t forget to leave a comment in the diary about which candidates we are going to endorse here at Open Left in 2010.  Elections are far more than just a horserace abstraction–they are a participatory endeavor.
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National House Ballot, 3/29: Dems holding steady post-HCR, post-switchover to registered voters

by: Chris Bowers

Mon Mar 29, 2010 at 12:42

Today’s update: Democrats +0.7%
Last week: Democrats +0.2%

In the first week following the completion of this round of health reform legislation, Democrats are holding steady in the National House Ballot.  Across the four tracking polls–Daily Kos, Economist, Gallup and Rasmussen–Democrats have actually improved slightly.  The previous four polls from those organizations showed Democrats trailing by 1.25%, but the most recent polls from each of those organizations show them ahead by 1.25%.

The continuing Democratic advantage is significant since polls of “all adults” have almost entirely washed out of the system.  CNN, Daily Kos, and the Economist are among the many organizations that have moved away from polls of all adults in favor of polls of registered voters.  In theory, such a polling shift should have been beneficial to Republicans, since Republican voting groups have a higher voter registration rate than Democratic voting groups.

It remains to be seen if Democrats will be able to maintain their narrow advantage when polls inevitably shift from “registered voters” to “likely voters.” Conventional wisdom currently states that Republicans have an advantage in voter enthusiasm in 2010 which will translate into higher voter turnout.  This CW is backed up by polling, with Gallup estimating that Republicans historically gain about 4% among likely voters during mid-term elections, and Democracy Corps currently estimating a roughly 2% Republican improvement.

Republicans are probably ahead right now in the National House Ballot among the people who will actually turnout to vote in 2010.  However, it is a narrow lead, and there are still over seven months until the election.

National House Ballot, March 29th
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Mar 29 43.36 42.68
WaPo Reg. Voters Mar 25 48 44
Daily Kos Reg. Voters Mar 24 48 42
Economist Reg. Voters Mar 21 47 42
CNN Reg. Voters Mar 20 45 48
Quinnipiac Reg. Voters Mar 19 39 44
Gallup Reg. Voters Mar 18 47 45
Rasmussen Likely Voters Mar 18 35 43
Daily Kos Reg. Voters Mar 17 47 44
DCorps Likely Voters Mar 17 44 43
Fox Reg. Voters Mar 17 38 42
Economist Reg. Voters Mar 15 44 45
NBC / WSJ Reg. Voters Mar 13 45 42
PPP Reg. Voters Mar 13 43 46
Gallup Reg. Voters Mar 11 47 44
Rasmussen Likely Voters Mar 11 35 45
Daily Kos Reg. Voters Mar 10 46 43
On Message Likely Voters Mar 10 36 37
Economist All Adults Mar 08 45 39
AP-GfK All Adults Mar 06 44 38
Gallup Reg. Voters Mar 04 47 44
Rasmussen Likely Voters Mar 04 37 44
Daily Kos Reg. Voters Mar 03 45 42
Economist All Adults Mar 01 46 37
Ipsos All Adults Feb 27 50 40
Rasmussen Likely Voters Feb 25 36 44
Methodology

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National House Ballot, post-hcr baseline

by: Chris Bowers

Mon Mar 22, 2010 at 11:09

After the House passed the Senate health insurance reform bill last night, the National House Ballot stands almost exactly where it did at the beginning of the month.  The Democratic advantage is 0.2%, compared to 0.3% 18 days ago.

Polls included in the calculation
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Mar 22 41.87 41.65
Daily Kos Reg. Voters Mar 17 47 44
Fox Reg. Voters Mar 17 38 42
Economist Reg. Voters Mar 15 44 45
NBC / WSJ Reg. Voters Mar 13 45 42
PPP Reg. Voters Mar 13 43 46
Gallup Reg. Voters Mar 11 47 44
Rasmussen Likely Voters Mar 11 35 45
Daily Kos Reg. Voters Mar 10 46 43
On Message Likely Voters Mar 10 36 37
Economist All Adults Mar 08 45 39
AP-GfK All Adults Mar 06 44 38
Gallup Reg. Voters Mar 04 47 44
Rasmussen Likely Voters Mar 04 37 44
Daily Kos Reg. Voters Mar 03 45 42
Economist All Adults Mar 01 46 37
Ipsos All Adults Feb 27 50 40
McLaughlin Likely Voters Feb 25 35 42
Rasmussen Likely Voters Feb 25 36 44
Daily Kos All adults Feb 24 37 36
Fox Reg. Voters Feb 24 36 35
Economist All adults Feb 22 45 38
Democracy Corps Likely Voters Feb 22 44 47
Rasmussen Likely Voters Feb 18 35 44
Methodology

There are a lot of varying opinions on whether passing this bill will be good, politically speaking, for Democrats.  I say we just measure where the political situation stands today, and compare it to the political situation over the next month.

It won’t be a perfect test, as there are other factors in these polls, and in the national political scene, than just health reform.  Additionally, while we have passed the climax, this particular health reform legislative fight isn’t quite over yet, either.

Still, right now, Democrats are narrowly ahead.  Let’s see if that holds.

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A complete look at House polling and retirements

by: Chris Bowers

Thu Mar 04, 2010 at 09:30

Eric Massa’s retirement is not helpful to the overall electoral picture for Democrats.  However, a close look at national polling, and the now 36 open House seats, shows that Republicans still need to defeat a minimum of 33 incumbents to win control of the House in 2010.

Defeating 33 incumbents is virtually impossible.  In 2006 and 2008, Democrats won the national popular vote by 6.49% and 9.65% respectively.  Despite this, they still only defeated 37 Republican incumbents in those two years combined.   With Republicans nowhere close to that level of strength in the generic congressional ballot, it is still more likely than not that Democrats will retain control of the House.

****

1. Democrats currently hold narrow lead in National House Ballot
Democrats currently hold a very narrow lead of 0.3% in the National House Ballot.  Here are all of the generic congressional ballot polls with the majority of their interviews conducted in February:

Polls included in the calculation
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Mar 04 41.45 41.13
Ipsos All Adults Feb 27 50 40
Rasmussen Likely Voters Feb 25 36 44
Daily Kos All adults Feb 24 37 36
Fox Reg. Voters Feb 24 36 35
Economist All adults Feb 22 44.7 37.7
Newsweek Reg. Voters Feb 18 45 43
Public Opinion Reg. Voters Feb 18 42 43
Rasmussen Likely Voters Feb 18 35 44
Daily Kos All adults Feb 17 38 37
Economist All adults Feb 15 47.5 35.6
CNN Reg. Voters Feb 14 45 47
Rasmussen Likely Voters Feb 11 36 45
Daily Kos All adults Feb 10 39 38
Economist All adults Feb 08 46.7 39.5
ABC / WaPo All Adults Feb 06 45 48
Pew Reg. Voters Feb 06 45 42
Rasmussen Likely Voters Feb 04 36 44
Daily Kos All adults Feb 03 38 37
Democracy Corps Likely Voters Feb 03 46 45
Fox Reg. Voters Feb 03 36 41
Gallup All Adults Feb 02 45 45
Economist All adults Feb 01 43.1 38.0
Methodology: I have gone back to using a 30-day average, mainly because I feel more comfortable when more polls are included in the calculation.  Additionally, my research shows that the 30-day average is only slightly less accurate than the 15-day average.

2. Republicans lead among registered and likely voters
The Democratic advantage of 0.3% disappears when looking at polls of registered and likely voters.  Among those 11 polls, Republicans hold a 3.2% advantage.

A net 3.5% gain for Republicans among registered and likely voters seems quite reasonable, given both historic midterm trends and current voter enthusiasm measurements.

3. Republicans need 40 pickups, but stand to gain only 7 from open seats
With the polling in mind, here is a complete list of House retirements so far (more in the extended entry):

There’s More… :: (3 Comments, 377 words in story)

More Republicans retiring, but open seats still favor GOP pickups

by: Chris Bowers

Thu Feb 11, 2010 at 13:45

Confused by the wave of retirements from the House of Representatives?  Hopefully, this post will help sort out the retirement picture for you.

The current partisan composition of the House is:

Democrats: 255
Republicans: 178
Open: 2 (FL-19, PA-12)

Heading into the 2010 elections, 31 of the 433 seats that are currently filled will also be “open” (that is, lacking an incumbent candidate).  While 18 of those 31 seats are currently held by Republicans, and only 13 are currently held by Democrats, Republicans still stand to gain more pickups in those open seats than Democrats.

The Cook Political Report maintains an updated list of open seats.  Here are two lists, one of open Democratic seats, and one of open Republican seats, sorted by Cook’s Partisan Voting Index.

Democratic-held open seats (15)
District Cook PVI
TN-06 R +12.7
LA-03 R +11.6
AR-01 R +7.6
TN-08 R +6.1
AR-02 R +4.8
KS-03 R +3.3
PA-12 R +0.6
WA-03 D +0.4
Current polling R +1.3*
NH-02 D +3.3
PA-07 D+ 3.5
HI-11 D +10.8
FL-19 D +14.8
AL-07 D +18.0
FL-17 D +34.2
CA-33 D +34.8
* = Because of the way PVI works, a national ballot lead of 1.27% for Republicans makes a D +0.6 district the tipping point.

Eight of the open districts currently (or formerly) held by Democrats have a partisan tilt more favorable to Republicans than current National House Ballot polling.  By contrast, there are only two open districts currently held by Republicans that have a partisan title more favorable to Democrats than current National House ballot polling:

Republican-held open seats (18)
District Cook PVI
DE-AL D +7.0
IL-10 D +5.8
Current polling R +1.3
FL-25* R +4.6
FL-12 R +5.7
MI-03 R +6.2
MI-02 R +7.4
CA-19 R +8.7
AZ-03 R +9.0
SC-01 R +10.3
OK-05 R+ 12.9
TN-03 R+ 13.4
KS-04 R+ 13.6
IN-04 R+ 14.4
AR-03 R+ 15.7
SC-03 R+ 16.5
MO-07 R+ 17.0
KS-01 R+ 22.7
GA-09 R+ 27.9
* = While Lincoln Diaz-Balart is retiring from the FL-21, his brother, Mario, will switch from the FL-25 and run in the FL-21.  This leaves the FL-25 open, not the FL-21.

Even though there are a three more Republican-held open seats (18) than Democratic-held open seats (15), the negative national environment for Democrats makes Republicans favored to make more pickups (8) than Democrats (2) from these open seats.

There are many other factors in determining how an election goes than PVI and the national House vote.  However, consider this a thumbnail sketch as I work on my first detailed, seat by seat House forecast (coming today or tomorrow).  If this thumbnail sketch holds, then the partisan balance of the House would be Democrats 251–184 Republicans.  So, if Republicans are going to take the House, they are going to have to defeat around three dozen Democratic incumbents.  That is a tall task, but far from impossible.

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National House Ballot, February 1st: Republicans take their first lead

by: Chris Bowers

Mon Feb 01, 2010 at 11:47

February 1st: Republicans +1.2%

Last update: Jan 29: Democrats +0.3%

Commentary: For the first time since I began monitoring the national House ballot since October, Democrats have fallen behind.  Further, they have no clar path back into the lead, as five separate polling organizations now show them facing a deficit.  This includes two of the three polling outfits with weekly poll updates, Daily Kos and Rasmussen.

It would be very difficult for Democrats to maintain control of the House of Representatives when facing a deficit like this.  The median error for this methodology is 1.77%.  As such, given current polling, the odds of a Democratic victory in the popular vote (if the election were held tomorrow) would only 32%.  Given that Republicans have an edge in current district composition (the 218th district has a Cook PVI of R+2), that Republicans will likely have an edge in total number of districts with a candidate, and that many of these polls are still measuring all adults rather than registered voters or likely voters, if anything the Republican advantage of 1.2% is an underestimation.

Later in the month I will be introducing a House forecast that looks at individual seats.  However, do not expect that more detailed, seat by seat forecast to be any more favorable to Democrats.  Republicans are now in a position to retake the House.  Barring any improvement in the national political environment, I expect them to do just that.

Polls included in the calculation
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Feb 01 40.45 41.64
Daily Kos All adults Jan 27 37 39
Economist All adults Jan 25 46 38
NBC / WSJ All adults Jan 24 44 42
NPR Likely Voters Jan 21 39 44
Rasmussen Likey Voters Jan 21 37 46
Daily Kos All adults Jan 20 37 38
Gallup All adults Jan 20 40 36
McLaughlin Likely Voters Jan 20 42 47
PPP Reg. Voters Jan 19 42 45
Economist All adults Jan 18 44 38
Rasmussen Likely Voters Jan 14 37 45

Changes in the polls:
—Jan 20 McLaughlin added
–Jan 15 AP-GfK removed
–Jan 14 NBC / WSJ removed

Recent results (for context):
2008: Democrats +9.85% (257 seats)
2006: Democrats +7.9% (233 seats)
2004: Republicans +2.6% (203 seats)
2002: Republicans +4.6% (206 seats)

There’s More… :: (22 Comments, 279 words in story)

National House Ballot Update: Republicans in position to take the House

by: Chris Bowers

Wed Jan 27, 2010 at 15:03

January 27th: Democrats +0.5%

Last update: Jan 26: Democrats +0.8%

Commentary
Republicans are almost certain to take the lead on January 31st, when the AP-GfK poll is removed from the calculation.  In fact, Republicans are probably already ahead.  Most of these polls have surveyed adults, and Republicans always do better among registered voters than adults (and better among likely voters than registered voters).  As such, unless the political situation improves, it is entirely possible–even likely–that Democrats will lose control of the House.

Polls included in the calculation
Poll Sponsor Voter Type Poll Mid-Date Democrats Republicans
Total All Jan 27 40.85 40.38
NBC / WSJ All adults Jan 24 44 42
NPR Likely Voters Jan 21 39 44
Rasmussen Likey Voters Jan 21 37 46
Daily Kos All adults Jan 20 37 38
Gallup All adults Jan 20 40 36
PPP Reg. Voters Jan 19 42 45
Economist All adults Jan 18 44 38
AP-GfK All adults Jan 15 49 37
NBC / WSJ All adults Jan 14 41 41
Rasmussen Likely Voters Jan 14 37 45
Daily Kos All adults Jan 13 38 37
Fox Reg. Voters Jan 13 38 37
Economist All adults Jan 11 45 39

Changes in the polls:
—Jan 24 NBC / WSJ added
—Jan 21 NPR added

Recent results (for context):
2008: Democrats +8.9% (257 seats)
2006: Democrats +7.9% (233 seats)
2004: Republicans +2.6% (203 seats)
2002: Republicans +4.6% (206 seats)

There’s More… :: (0 Comments, 279 words in story)
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