Sen. John Cornyn (R-Texas) assailed Majority Leader Harry Reid (D-Nev.) for allowing a repeal of the "Don't ask, don't tell" policy regarding gays in the military to come to the floor within a Defense Department authorization measure, although he stopped short of predicting a Republican filibuster.

Cornyn wouldn't say if the GOP would move to block the controversial provision if Reid moves forward with a vote this month. Gay-rights groups are pushing Reid to do so, packaging the provision with the 2011 defense authorization bill that sets military policy.

But Cornyn did make clear what he thought of such a tactic.

"That would be a cynical and transparently political move," Cornyn said. Asked about a filibuster, he added, "I know that leadership is asking members about their inclination, and I don't know that that's been whipped yet."