"Who's to say whether we have enough votes or not," said Sen. Wayne Allard, R-Colo., noting that the new two-year Congress has just begun.
He said he expects GOP leaders to call for a vote before the 2006 elections and added, "I think it would be foolhardy to back off when we've got a good head of steam coming out of the election." The amendment fell far short of passage a year ago.
The amendment states that marriage "shall consist only of the union of a man and a woman," adding that no state would be required to give legal recognition to same-sex marriages sanctioned by any other state.
Vote counters on both sides of the issue agree that Senate backers of the amendment picked up support in the 2004 elections, and the presence of Sen. John Thune, R-S.D. at the news conference underscored that. Last fall Thune defeated former Democratic Leader Tom Daschle – who had opposed the amendment.
"There were a lot of races...where this issue was prominent," Thune said.
Supporters of the amendment mustered only 48 votes last year on a procedural motion needed to keep the proposal alive in the Senate. A two-thirds majority is needed for passage.
Most Democrats signaled their opposition to the measure on the vote, and President Bush and others have said it's unlikely there will be much of a change in senatorial sentiment unless there is a court ruling requiring one state to recognize same-sex marriages performed in another.
But Allard said he thought some opponents might reconsider more quickly in the wake of last fall's elections. "I know the Democrats are reevaluating their position on a number of social issues, and I'll bet this is one of those issues," he said.
In addition to the impact the issue had in congressional campaigns, voters in 13 states approved ballot initiatives last year that were backed by gay marriage opponents.
Mr. Bush pushed hard for a vote in both houses of Congress on the amendment during last year's election campaign. This year, he said in a Washington Post interview he will not lobby the Senate to pass the amendment, adding there are not enough supporters to approve the measure. When social conservatives complained, White House counselor Dan Bartlett said Mr. Bush was talking about the "legislative reality," and will continue to push for the ban.
Additionally, White House strategist Karl Rove did not mention the issue when he spoke to GOP lawmakers earlier this winter and laid out the president's top priorities.