The Three Least Popular Senators

According to Survey USA, the three most unpopular senators are all Republicans and two are up for reelection this year:

Jim Bunning, KY: 40% approval, 48% disapproval
Conrad Burns, MT: 40% approval, 56% disapproval
Rick Santorum, PA: 36% approval, 57% disapproval

The good news for Santorum (such as it is) in SUSA's numbers is that he's still doing better than Bush in Pennsylvania:

George Bush among PA voters: 28% approval, 70% disapproval

According to the WSJ, via Taegan Goddard's Political Wire, Congressman Curt Weldon will not be on hand to welcome Bush.