Aubrey Sarvis, a leader in the movement to repeal “Don't Ask, Don't Tell,” says the votes to break Senator John McCain's threatened DADT repeal filibuster on Tuesday are not there.

Sarvis, the executive director of the Servicemembers Legal Defense Network, the largest group lobbying for repeal of the 1993 law that forbids gay troops from serving openly, says the votes to overcome a threatened Republican filibuster on repeal in the Senate have yet to materialize.

McCain, a Republican from Arizona, has led the effort to block passage of the annual Defense Authorization Act because the controversial repeal amendment has been attached to it. House members approved a similar measure in May.

“The votes to break McCain's filibuster are not there,” Sarvis said in a statement. “We need Senators [Olympia] Snowe and [Susan] Collins on board; they're key to us breaking the filibuster.”

“With the vote less than 48 hours away, we need everyone supporting repeal to call the Senate,” he added.

Sarvis is hoping a Monday rally in Maine featuring pop singer Lady Gaga will help convince Senators Snowe and Collins, who are both Republican and represent Maine, to support repeal of the law.

“Like Lady Gaga, all New England senators, indeed all 100 senators, Democrats and Republicans, need to engage in a real debate on this issue, and not just posture and spin this week over procedure and Senate rules,” Sarvis said.