The bad news for Republican Scott Brown in Massachusetts? Obama-who remains popular in the state-is planning a last-minute campaign appearance to prop up Martha Coakley, who is doing all she can to make Creigh Deeds look like an awesome candidate. The good news for Scott Brown? Creigh Deeds, Jon Corzine, and the Chicago Olympic committee all found out that Obama doesn’t have the pull he thinks he does. Maybe it’ll be different in Massachusetts…or maybe not:

But, in reality, the situation is a lot worse for Dems than it appears. According to strategists familiar with internal polls conducted for Coakley’s campaign, the consequences of Obama’s visit could produce a net-negative effect on Coakley’s campaign.

Obama has a net favorable rating in MA, according to public and private polls…But the intensity of voters who view him unfavorably, or who disapprove of his job performance, is so high that an appearance with Coakley could bring out more GOPers ready to vote for Brown than it could Dems set on their nominee.

“Obama is radioactive in polls,” said one senior Dem operative who has seen the campaign’s internal numbers. “Every time they dropped his name in a poll, it was awful. So you just can’t take those kinds of chances.”

We’ll see, I guess. The fact he is planning to stop in deep blue Massachusetts to try and salvage Teddy’s old seat for the Dems tells you all you need to know about how nervous Democrats are getting. Given that, you’d think they’d be on their best behavior. Not so. Check out this DSCC ad put out on Coakley’s behalf:

In case you missed it, they used an old image of the World Trade Center as they attacked Brown over Wall Street greed. Great job, guys…they pulled the ad and replaced the image. By the way, it takes some awfully big stones to suggest Brown won’t “stand up” to insurance companies when the Democrat is the one grabbing all the health care industry cash she can.

I still expect Coakley will win Tuesday, but it certainly is no longer a fait accompli.

UPDATE: Coakley really needs to stop giving interviews. Who knew Curt Schilling, who helped the Boston Red Sox win their first World Series in decades, was actually a Yankee fan? Only Martha, apparently.