Illinois voters say they would be negatively influenced if a candidate was endorsed by Barack Obama. And if his support isn't an asset in his home state it's hard to imagine where it is.
40% of voters in the state say they'd be less likely to support an Obama endorsed candidate to only 26% who say it would be an asset. The reality at this point is that Obama turns Republican voters off to a much greater extent than he excites Democrats. That's reflected in the fact that 83% of Republicans say an Obama endorsement would be a negative with them while only 49% of Democrats say it would be a positive. Independents also respond negatively by a 38/19 margin.
The numbers on an Obama endorsement are perhaps more relevant with undecided voters. Among those who have not yet made up their minds in the Senate race 21% say an Obama endorsement would resonate positively with them while 33% say it would be a turnoff.
An Obama endorsement does at least go across better with Illinois voters than a Sarah Palin one does. That's not the case in Pennsylvania. There 28% of voters say they'd be more inclined to vote for someone supported by Palin while only 20% say the same about Obama. Likewise 49% say an Obama endorsement would hurt a candidate's cause with them to 46% who say the same about Palin.
Obviously these numbers are skewed somewhat by the fact that many 2008 Obama voters are not in the likely voter pool and the argument in favor of having him come campaign for you is that you might be able to draw more of those folks out. But his visits didn't seem to have that impact in New Jersey, Massachusetts, and Virginia. It's becoming increasingly clear that Obama is not much of an asset for Democratic candidates on the campaign trail and that for most of them it would be better if he just stayed away.
Full results here