http://thehill.com/blogs/floor-action/senate/217025-senate-advances-constitutional-amendment-on-campaign-spendingIt'll probably fail in the actual vote, knowing this Senate, but at least we know the 18 who voted against advancing it just this tiny bit. They are all Republicans:
John Barrasso (R-WY)
Saxby Chambliss (R-GA)
Tom Coburn (R-OK)
Mike Crapo (R-ID)
Ted Cruz (R-TX)
Mike Enzi (R-WY)
James Inhofe (R-OK)
Johnny Isakson (R-GA)
Ron Johnson (R-WI)
Mike Lee (R-UT)
Rand Paul (R-KY)
Rob Portman (R-OH)
Jim Risch (R-ID)
Pat Roberts (R-KS)
Tim Scott (R-SC)
Richard Shelby (R-AL)
John Thune (R-SD)
Pat Toomey (R-SD)Kirsten Gillibrand (D-NY),
Lisa Murkowski (R-AK) and
Roy Blunt (R-MO) did not vote.
Obviously not nearly all the Republicans who voted for this are going to vote for the final bill, though