I've been thinking about who needs to get on board in order for this bill to pass, and I've come up with a few names:
-Heidi Heitkamp - Sources indicate that she won't vote yes until there are already 57 to 59 "Yes" votes already on board.
-Kelly Ayotte - Taking a lot of heat from her state for not voting "Yes" the first time, might change her tune to appease New Hampshire voters.
-Max Baucus - Might vote Yes considering how unpopular he is among Democrats right now, but I doubt it seeing how badly that might play out in Montana.
-Dean Heller - From a blue state, doesn't have to worry about re-election for a while
-Jeff Flake - Personal friendship with Giffords/Kelly, might be convinced by McCain, could take some heat from this story:
http://gawker.com/5995134/sen-flake-promises-gun-control-reform-to-aurora-victims-mom-flakes