Perry really made his mark when he successfully goaded Mitt Romney into one of the worst moments he’s had in a debate so far. Perry challenged Romney on a passage in his first book, claiming an early edition said the Massachusetts health-care program should be a model for the national plan.

Romney disputed the claim and when Perry persisted, he jokingly offered a $10,000 bet. Perry didn’t take the bet, but he won the point. Romney was casually offering the equivalent of about one-fifth of the average median income for an Iowa family. Romney’s privileged background was driven home later when the candidates were asked whether they’d ever had to cut costs in their own family budget.

“I didn’t grow up poor,” Romney said, and noted that if voters are looking for someone who did, they’ll have to vote for somebody else.