Jon Stewart interviewed Donald Rumsfeld on The Daily Show Wednesday night, where the former Secretary of Defense talked about the war in Iraq and his new book, Known and Unknown. After warmly shaking Rumsfeld's hand, Stewart cut to the chase, "I think I know why you're here, and let me just deflate the tension right off the bat. Apology accepted."

Then the comedian got down to business, asking Rumsfeld to defend the seeming arrogance and certainty behind the Bush administration's decision to go to war. Rumsfeld denied that the decision was an easy one to arrive at. "It isn't [how I remember it], Rumsfeld said. "There was a searching, lots of questions."

A few times Stewart seemed taken aback when Rumsfeld unexpectedly agreed with him, including when he stated that the Bush administration found very little to link Saddam Hussein and Al Qaeda, which at the time was used as a reason for declaring war on Iraq. "I feel like we're just sitting on a porch now, sipping lemonade," Stewart said, which Rumsfeld somehow construed as an attack on his accent. —KIMBERLY STEELE

Watch the interview here: