Washington ? President Barack Obama said Saturday he is ready to compromise with Republicans on health care if they are serious about it, but that an overhaul must go forward. “Let’s get this done,” he said.

Obama’s comments in his weekly Internet and radio address, two days after an all-day bipartisan summit across from the White House, were the latest sign that Democrats are getting set to try to pass health care legislation without any Republicans on board.

Success will require colossal efforts on the part of Obama and Democratic leaders to round up votes after a year of corrosive debate and a Senate special-election upset that threw the overhaul effort into limbo last month.