House Democrats have cleared an impasse over abortion that has been holding up a vote on sweeping health care legislation.

A vote is expected on Saturday — after President Barack Obama makes a late morning trip to the Capitol to make one final pitch for the legislation.

According to Rep. Bart Stupak of Michigan, he and other abortion opponents will be given a chance to insert tougher abortion restrictions into the legislation during debate on the House floor.

The leadership hopes that no matter how that vote turns out, Democrats will then unite to give the health care bill a majority over unanimous Republican opposition.