"One of the major opponents, when asked, well, why is it that you'd potentially shut down the government, at this point, just to block 'Obamacare,' he basically 'fessed up," Obama said, alluding to Cruz. "He said, well, once, you know, consumers get hooked on having health insurance and subsidies, then they won't want to give it up.
"So it is very important that people just know what's out there, what's available to them, and let people make up their own minds as to whether it makes sense or not," he said.
The two presidents weren't the only ones sharing the spotlight. Former Secretary of State Clinton, herself a prospective presidential nominee, introduced her husband and Obama before the discussion began, highlighting their common traits.
"They're both left-handed. They both love golf -- a game that does not often reciprocate the love they put into it. They both are fanatic sports fans and go to great lengths to be in front of the TV or on the side of the court or the field," she said. "They both are master politicians. Each of them has only lost one election.
"They have fabulous daughters. They each married far above themselves," she added with a grin, drawing hearty applause.
When Obama took the stage, he said in agreement.
"There's nothing she said that was not true," he said, "particularly the part about us marrying up."