Senate forecast Update, January 26th

by: Chris Bowers

Tue Jan 26, 2010 at 17:30


Jan 26 Senate update: Democratic loss of 5.32 seats (five)

Change from Jan 25: Democrats up 0.69 seats (ONE)

Projected 2010 Senate: Democrats 54-46 (assuming no caucus switches)

Even though it is only January, developments in the 2010 Senate picture keep coming in every day.  So, it is time for another major update to the Senate picture.

****

Today's forecast shows the Democratic situation has improved in a number of states: Missouri, Colorado, Nevada, and North Carolina.  Much of this was due to new statewide polling from Polimetrix.  While those all of those states except Missouri still show significant leans, they have moved back into more competitive territory.

While still grim, the situation is far from hopeless for Democrats.  A national swing of 3%--which is very doable given the dominance of Rasmussen in the polls here and if the employment situation improves--would add another 2 seats to their total.  Keeping a majority of 56 seats would actually be pretty respectable, given that Republicans haven't had a majority like that since the 1928 elections.

Senate forecast overview
Democrats* Republicans
Not up for election 41 23
Currently safe 9 12
Sub-total 50 35
Current polling 3.68 11.32
Projected total 54 46
* = Because they caucus with Senate Democrats, Independents Bernie Sanders and Joe Lieberman are considered Democrats

The 15 currently competitive Senate campaigns
("Competitive" is defined as campaigns where incumbent party currently leads by 18% or less in current polling among announced candidates)
Democrats: 3.68 (4)
Republicans: 11.32 (11)

State Democrat Republican Margin Current Dem Win %
Wisconsin Feingold Wall D 14.0 100%
WI Feingold Westlake D 15.0 100%
California Boxer Campbell D 7.0 97%
CA Boxer Fiorina D 9.0 99%
CA R Primary Campbell +5.0
Illinois Giannoulis Kirk* D 1.5 72%
IL Jackson Kirk* R 3.5 13%
IL Hoffman Kirk* R 7.0 3%
IL D Primary Giannoulis +14.3
Missouri Carnahan Blunt* Even 50%
Pennnsylvania Specter Toomey R 3.5 13%
PA Sestak Toomey R 5.8 6%
PA D Primary Specter +19.0
Arkansas Lincoln Baker R 4.3 9%
AR Lincoln Coleman R 1.3 31%
AR Lincoln Hendren D 0.8 62%
AR R Primary Baker +2.0 (straw poll)
Ohio Fisher Portman* R 5.3 6%
OH Brunner Portman* R 5.8 6%
OH D Primary Fisher +5.5
Colorado Bennet Norton* R 5.3 6%
CO Romanoff Norton* R 7.8 3%
CO D Primary Romanoff +14.0
Nevada Reid Tarkanian R 5.8 6%
NV Reid Lowden R 8.0 2%
NV Reid Angle R 4.3 9%
NV R Primary Tarkanian +0.5
North Carolina Marshall* Burr R 6.7 4%
Florida Meek* Rubio R 6.7 4%
FL Meek* Crist R 10.0 0%
FL R Primary Rubio +1.5
New Hampshire Hodes* Ayotte* R 8.0 2%
Kentucky Mongiardo Paul R 10.0 0%
KY Conway Paul R 7.0 3%
KY Mongiardo Grayson R 8.0 2%
KY Conway Grayson R 8.5 2%
KY D Primary Mongiardo +3.5
KY R Primary Paul +11.0
Delaware ???? Castle* R +??? 0%
North Dakota ????? Hoeven R +??? 0%
* = Faces primary challenge, but heavy favorite.

Please let me know how you think the forecast could be improved.  It remains a work in progress.  The methodology can be found here.

Chris Bowers :: Senate forecast Update, January 26th
This forecast features some important tweaks to the methodology:
  1. From now on, primary winners will only be projected based on current polling.

  2. Only polls from the last 60 days are included in the averages (instead of 90 days).

  3. Only officially announced candidates are included in the forecast.  Potential candidates are not considered until they actually file with the FEC.
I have also tried to make the charts easier to understand.  Hope you like the redesign.

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I believe there was a poll for DE (0.00 / 0)
Matching Castle against Chris Coons.  The poll had Castle up by 12.

Coons isn't running (0.00 / 0)
At least, not yet. As such, not included.

[ Parent ]
Then why did you include matchups with Biden (0.00 / 0)
back when he was an unofficial, undeclared candidate?

[ Parent ]
Its a work in progress (0.00 / 0)
I'm still trying to hit on the right formula.

I incorrectly thought Biden was a lock to run. His decision not to run made me rethink how I was doing things.


[ Parent ]
All the same (0.00 / 0)
I think it's helpful and informative to include hypothetical candidates.  If the polls are positive it could help encourage them to get into the race.

[ Parent ]
If Reid loses, will Joe go Republican?? I say yes. (0.00 / 0)
He's mumbling again about changing parties.  Why now?
Maybe he sees what's waiting for him if he loses his patron saint and like all fat ticks, is sniffing out the next best ride.

Nationalism is not the same thing as terrorism, and an adversary is not the same thing as an enemy.

He'd go Republican to stay in the majority (4.00 / 1)
... so any calculation of the odds of Republicans taking control should assume a Lieberman defection.

In any case, the Dems should kick him out.  No point in giving him a committee chair next time around if, as expected, the Dems retain control.


[ Parent ]
Some questions. (0.00 / 0)
Are the polls being weighed for sample size, and are there any estimates from past elections to estimate the sample representativeness of any poll being used?

Also, it is known that poll results can vary widely right up until the date of an election. What are the intervening factors that could alter poll results and an election, e.g., Obama comes to town, funding, union participation, dirty tricks (Republicans, of course).


As I noted in my methodology (0.00 / 0)
This method has proven more accurate than methods that weight for such factors.

[ Parent ]
do me a favor (0.00 / 0)
Chris, do me a favor. Instead of dividing Congress between the Democrats and the Republicans, why don't you divide it between those who are pawns of Wall Street and those who are not. Those who are in league with our crony capitalist political economy and those who are not.

At least with respect to the Big Buckmeister issues that revolve around economic and foregn policy.

Otherwise, we may as well be reading Time, Newsweek or the Washington Post, right?


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