The Des Moines Register reports that:
He ran into trouble when he gave his reason for running for president: "Because for 20 years we've had nothing but Bushes and Clintons in the White House. With all due respect to Senator Clinton, she's a lovely lady, but I think in a country of 300 million people we ought to be able to do something better than Bushes and Clintons."
"Yeah, he messed up. Not going to vote for him," said Artelia Hoffman, a retired teacher aide from Des Moines. "He might as well sit down."
Obama said nearly the same thing minutes later.
"There are a lot of good candidates in this race, and I admire them all, but the fact is that we've been hearing the same thing from Republicans and Democrats for the last 30 years," he said. "The question is not who can say the right words but who will have the judgment and courage to act on those words, even when it's inconvenient."
He got a roaring standing ovation.