Democrats don't currently have the votes necessary to pass healthcare reform in the House, Majority Whip James Clyburn (D-S.C.) acknowledged today.

House leaders are frantically trying to gather enough votes to pass the Senate bill as early as this week, but so far they've fallen short, Clyburn said.

"No we don't have them as of this morning but we've been working this thing all weekend," Clyburn told NBC's "Meet the Press."

The South Carolina Democrat, the top vote counter in the House, said he was confident Democrats would have a majority by the time the bill comes to the floor.

"I'm very confident we'll get this done," he said. "I think the members are going to vote for this."

Many House Democrats are wary of voting for the Senate bill, and don't trust that the Senate will approve changes to the bill through separate legislation.

But Majority Whip Dick Durbin (D-Ill.) said today that those fears are misplaced.

"When nancy pelosi goes before her caucus it will be with solid assurance that when reoccniliation comes over to the seante side, we're going to pass it," he told Meet the Press.