Las Vegas, Nevada (CNN) - In a high school gymnasium packed with more than 1,000 supporters, former President Bill Clinton gave a rousing speech touting the achievements of embattled Senate Majority Leader Harry Reid and criticizing his Republican challenger in an attempt to energize Democratic supporters.
Polls show the race between Reid and Republican Sharron Angle neck and neck.
[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/10/06/art.castle.gi.jpg caption ="A spokesperson for Delaware Rep. Mike Castle said he would not endorse Christine O’Donnell for Senate."](CNN) - The campaign of former Delaware Republican Senate candidate Mike Castle says there is "zero" chance he endorses his formal rival Christine O'Donnell.
According to Kate Dickens, spokeswoman for the Castle for Senate Campaign there is also, "zero chance that he endorses Coons."
After winning the GOP primary Tuesday night, Christine O'Donnell will face Democrat Chris Coons in the November general election.
Dickens told CNN that O'Donnell will not receive Castle's endorsement because of "the personal attacks on him and his family."