Bush Dog John Barrow in Georgia is facing a primary challenge from state Senator Regina Thomas. Tondee's Tavern has more on the race, quoting Insider Advantage.
Two-term Democrat John Barrow who represents the 12th District (Augusta and Savannah) has drawn a primary challenge from African-American state Senator Regina Thomas. This district's population is 44.5% African American. In this year's Democratic presidential primary African Americans constituted 69.4% of the turnout. In the 2006 summer primary, 66.8 % of the Democratic voters were black. If two-thirds of the voters in this summer's Democratic primary are African American then if Thomas gets three-fourths of that vote, she wins. If she polls 80% of the black vote, she can win if blacks constitute 62.5% of the turnout.
Barrow will have money, Thomas will have grassroots support. He's an archreactionary, as you can see from this ad.