Maine: Tom Udall

[img_assist|nid=2352|title=DSCC Press Conference|desc=Democratic challengers hold a press conferences with DSCC chairman Sen. Chuck Schumer (D-N.Y.)|link=none|align=left|width=400|height=300]DENVER -- U.S. Sen. Susan Collins’ (R-Bangor) seat is just one of a handful of seats that Democrats hope to take from Republicans this year, in order to gain a filibuster-proof majority.