President Obama rallied House Democrats this afternoon on the eve of a major vote on health care.

After he was done outlining the historic significance of the vote, some members spontaneously started chanting "Fired Up, Ready to Go" the White House told reporters.

White House spokesman Bill Burton told reporters that Obama told the caucus they had a unique opportunity before them:

"The President made the case that Congress has a historic opportunity today to provide stability and security for those who have insurance, affordable coverage for those who don't and bring down the cost of health care for families, small businesses and the government. He said that we have made more progress on comprehensive reform than any administration and any Congress in the past 70 years - and we should take this historic opportunity to pass health care reform so that he can sign a bill by the end of this year.

The White House also moved up the president's statement by an hour, he's expected to talk in the Rose Garden any moment.