The past four minutes have seen some of the biggest slams in the race so far.
The question was about fiscal responsibility, but the answers quickly devolved into an exchange over what Obama meant when he said Republicans were the party of ideas in recent decades.
First, Obama drobs the B-bomb, denouncing it when "President Clinton says I wasn’t opposed to war from the start or says it’s a 'fairy tale’ that I opposed the war." Hillary clarifies that she (and her husband) were talking about Obama’s actions (or lack thereof) on Iraq in the Senate.
Obama then lets this one loose: While I was a community organizer in Chicago, "you were a corporate lawyer sitting on the board of Wal-Mart." POW!
In her response, Clinton retaliates: I was working to help poor families "while you were representing your slumlord Rezko in his real estate." BLAM!
The audience loves it: "Ooooooo." You half expect them to start chanting, "JERRY! JERRY! JERRY!"
Hillary smiles: "We’re just getting warmed up."
UPDATE 8:38 p.m.: Forgot to include Obama's attack on the Clinton legacy itself: "These are the kinds of political games we are accustomed to."