Here's tonight's run-down on the Congressional races:GOP Pulls Out Of Only Possible Senate Pick-Up The NRSC is pulling out of the Louisiana Senate race, which had been the only real opportunity for the GOP to pick up a Senate seat from the Democrats this year -- they are now playing 100% on defense. A Republican source confirmed to Election Central that their ads will be pulled.Safe GOP Congressman Uses Jeremiah Wright In Attack Ad Here's a new attack ad from Rep. Steve Scalise (R-LA), remidning voters in this deep-red district that his opponent supports Barack Obama -- who in turn has an agenda shaped by Jeremiah Wright:The odd thing here is that Scalise is considered an absolutely safe bet for re-election, even by the standards of a Democratic wave that many observers are expecting this year. Which means that he either knows something the rest of us don't, and thinks he could be in serious danger -- or he's just a bully. Sali Heckles His Opponent's Staffer During Interview Rep. Bill Sali (R-ID) and his staff were caught loudly heckling a top staffer for Democratic challenger Walt Minnick while the staffer was speaking to a reporter. "Look, I think that the Minnick campaign needs to take an approach like we have," Sali then told the reporter. "I wish they would be a little more light hearted instead of so mean spirited."New Dem Ad Goes After Chambliss The national Democrats are clearly taking the Georgia Senate race very seriously, the DSCC is going on the air against GOP Sen. Saxby Chambliss, who was once thought to be absolutely safe. This ad attacks Chambliss for favoring a new national sales tax:"Saxby economics, something we can't afford," the announcer says. Of course, it should be noted that sales-tax proponents argue that their system should totally replace the existing federal tax structure, and not be a new 23% tax added on top of it.Chambliss Goes On The Attack Meanwhile, Chambliss is recognizing the threat posed by Democratic challenger Jim Martin, who now trails...