Many Democratic Congressional candidates want the President to stay away from their campaigns

As the President's job approval numbers continue to nosedive, Democratic congressional candidates continue to distance themselves from him. President Obama has been pushing policies that are just not popular with a majority of the American people. Independent voters are abandoning him, which is bad news for Democratic congressional candidates. Meanwhile, conservative voters are highly energized for the 2010 midterm elections, as reported by Michael Gerson in the Washington Post:

Independents have fled the Obama coalition, largely out of concern about debt, deficits and spending. Intensity is all on the Republican and conservative side. A recent Gallup poll found that the percentage of Republican voters who say they are "very enthusiastic" about voting in 2010 is twice the percentage of Democrats who say the same (44 percent to 22 percent). President Obama's job approval rating now flirts with 40 percent, with solid majorities disapproving of his handling of the economy, deficits and health care.