Washington (CNN) -- President Obama and Republican and Democratic leaders engaged in a spirited but civil debate at a health care summit Thursday, finding agreement on some issues but appearing to find little common ground on how to move forward in a bipartisan way. "I don't know, frankly, whether we can close that gap," said President Obama as the day-long meeting closed. If agreement is not reached, he said, there will be "a lot of arguments about procedures in Congress about moving forward," an apparent reference to using a parliamentary shortcut under which a health care bill could be passed with a simple majority instead of the 60-vote supermajority the body requires to overcome the filibuster which Republicans have threatened to use.
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Sen. Jay Rockefeller: "This is a rapacious industry that does what it wants"
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Sen. Tom Harkin says health care system discriminates, segregates people
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President Obama tells Sen. John McCain: "We're not campaigning. The election is over"
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GOP Sen. Lamar Alexander urges Democrats to scrap bills, start over on health care
Obama said @placeholder and Democrats seem to agree that costs have to be contained.
He called the GOP proposal "a legitimate issue," but said @placeholder already have a version of that proposal in their legislation.