A voice from the floor on illegal immigrants: 'You lie'

One of the most persistent conservative concerns about health care legislation is that it will provide health care to illegal immigrants -- and the heated claim spilled onto the floor of President Obama's address to a joint session of Congress this evening, where one Republican member called the president a liar for denying it.

"There are also those who claim that our reform effort will insure illegal immigrants. This, too, is false - the reforms I'm proposing would not apply to those who are here illegally," President Obama said.

A loud voice from the Republican side of the hall answered, "You lie!" -- my colleague Glenn Thrush reports it was Rep. Joe Wilson (R - S.C.) -- drawing a second "It's not true," from Obama and a shake of Nancy Pelosi's head.

The bill is designed to exclude those immigrants, though some Republicans have called for more explicit bans on funding for illegal immigrants and have claimed the bill will funnel money to illegal immigrants.

FactCheck.org described those claims as "false" and noted that one version of the legislation already includes an explicit bar on federal funding for illegal immigrants' health care.