A battle in the Senate is brewing over abortion. The House's just passed health care overhaul could make it harder to get an abortion. The Senate will now will now work on its own health care plan. And if it includes a provision similar to the House's, one New York senator will have a big problem voting for it. Curtis Schick explains.

CAPITAL REGION, N.Y. – Saturday, House Speaker Nancy Pelosi celebrates. The House passes a major health care reform bill. Now, it's on to the Senate. But the House's plan includes something that Senator Kirsten Gillibrand says she won't support.

"Women and girls lives will be put at risk," Gillibrand said.

It's called the Stupak Amendment. It helped get some socially conservative Democrats on board. It continues the current federal law that keeps federal funding from being used for abortions and adds any private health plans purchased using federal subsidies.

If put into law, it would most likely force women to buy supplemental coverage for an abortion.

"You are basically denying coverage to women and girls purchasing their own ins. You are basically saying that the government should make your health care decisions and not you and your doctor," Gillibrand said.

The amendment received major support from the U.S. Conference of Catholic Bishops and made Planned Parenthood pull its support of the House Democrats bill.

Gillibrand believes the Senate's plan will not include a similar provision. But one pro-life Senate Democrat says he'll vote no unless a that provision is in the bill.

"If there's public money going to fun abortions, I can't support it. Period. No matter what else is in it," said Nebraska Senator Ben Nelson.

And that's why the Senate situation is tricky. Unless all 60 Democrats are on board, opponents can filibuster. And with Senators already divided, the debate could drag on until next year.