WORLD Washington Bureau chief Edward Lee Pitts writes that there’s not much drama left in tonight’s Senate vote on healthcare reform, especially after two fence-sitting Democrats, Mary Landrieu of Louisiana and Blanche Lincoln of Arkansas, announced their intentions earlier today that they’d vote alongside their fellow party members:

Both Landrieu and Lincoln qualified their decisions:

“Much more work needs to be done,” said Landrieu.

“Although I don’t agree with everything in this bill, I have concluded that I believe it is more important that we begin this debate to improve our nation’s healthcare system for all Americans rather than just simply drop the issue and walk away,” added Lincoln.

Both Landrieu and Lincoln bashed the government-run public insurance option found in the bill. Another holdout, Ben Nelson of Nebraska, who signaled his support for moving forward on Friday, remains concerned with the bill’s abortion provisions. Democrats will have to continue to entice these moderate fence-sitters before a final vote on the bill.

From the other side of the aisle:

“Senators who support this bill have a lot of explaining to do,” warned Senate Republican leader Mitch McConnell of Kentucky, who called the bill a budget-busting monstrosity. “Americans know that a vote to proceed, to get on this bill, is a vote for higher premiums, higher taxes, and massive cuts to Medicare.”

Read Lee’s report in its entirety here. The vote to move on to debate is scheduled for 8 p.m. ET.

UPDATE: The motion to move to formal debate in the Senate passes 60-39. Republican Sen. George Voinovich of Ohio was the only senator not to cast a vote.