In the televised debate, Clinton accused Obama of praising ideas from the opposition party over the past 10-15 years after Obama said last week that Reagan "changed the trajectory of America."
"Now I personally think they had ideas. But they were bad ideas," said Clinton, a New York senator who would be America's first woman president. "They were bad ideas for America."
Obama, who would be the first black U.S. president, shot back that he was in no way praising Republican ideas, but simply saying that Reagan had been able to bring political rivals together.
When Clinton interrupted to say she had not mentioned Reagan, Obama said, "Your husband did."
"I'm here, he's not," she tossed back.
"Well I can't tell who I'm running against sometimes," Obama replied, a sign of his increasing exasperation at the attack role Bill Clinton is playing in her campaign.
Hiss! Spit! It's a laugh riot!