Romney Makes a Birth Certificate Joke While Campaigning in Michigan – NYTimes.com
http://thecaucus.blogs.nytimes.com/2012/08/24/romney-makes-a-birther-joke-while-campaigning/

2:00 p.m. | Updated COMMERCE, Mich. —Mitt Romney, who has decried the nasty personal tone of the presidential campaign, seemed to make a joke about President Obama’s birth certificate while speaking to voters here Friday, re-injecting the issue of the president’s birthplace into the campaign.

“Now I love being home in this place where Ann and I were raised, where both of us were born,” Mr. Romney said, standing alongside his wife, Ann, and his running mate, Representative Paul D. Ryan. “Ann was born in Henry Ford Hospital. I was born in Harper Hospital. No one’s ever asked to see my birth certificate. They know that this is the place that we were born and raised.”