This just in from the CQ midday update:
SENATE REPUBLICAN SPLIT COULD SINK PROPOSED GAY MARRIAGE BAN
Senate Republican opposition to a proposed constitutional amendment to bar gay marriage could scuttle the measure's consideration this week. The Senate is debating a motion to take up a proposal (S J Res 40) by Wayne Allard, R-Colo., that would define marriage as "the union of a man and a woman." Democrats are not blocking a vote on the measure, but they also do not want it to be subject to amendment. Senate GOP Conference Chairman Rick Santorum of Pennsylvania said Republicans do not agree on the wording of the proposal. Republican leaders bypassed the Judiciary Committee to bring it directly to the floor. Judiciary Chairman Orrin G. Hatch, R-Utah, has advocated language that would take the matter out of the hands of judges and leave it to state legislatures, without expressly defining marriage. Minority Whip Harry Reid, D-Nev., estimated that eight to 12 Republicans would vote against Allard's resolution and no more than 42 senators would vote for it.
I hope the whole thing blows up in their face.