10:31 p.m. John Kasich says he recently attended a gay wedding, garnering applause. —David A. Graham
10:31 p.m. When the Iran nuclear deal came up earlier tonight, unsurprisingly, Rand Paul and Mike Huckabee voiced their criticisms. Paul has noted his concerns about the deal, such as sanctions relief, but, as he did Thursday night, said he's open to negotiations. Huckabee, while also opposed, offered a tamer response since coming under fire for likening the deal to the Holocaust. —Priscilla Alvarez
10:30 p.m. Marco Rubio says future generations will look back and call present day Americans "barbarians" for allowing unborn babies to be killed. And yet, when Rubio speaks about present day America's role in the world, he asserts that we are exceptional, a shining beacon of freedom, a city on a hill. There is a deep incoherence in thinking both of these things at once. —Conor Friedersdorf
10:25 p.m. Megyn Kelly asks Bush why he sat on the board of the Bloomberg Foundation, which donated to Planned Parenthood. Bush says he joined because of Bloomberg's work on education reform, and he adds that he never debated the budget. He also says that as governor he was extremely pro-life. But Bush looks like he's flailing a bit, and cozying up to Michael Bloomberg is perhaps dangerous for a Republican candidate. In fact, there are ads attacking Bloomberg's gun-control efforts airing during this very debate. —David A. Graham
10:19 p.m. Walker, Paul, and Huckabee all give fairly uninteresting answers on Iran. Even Paul, who is theoretically in favor of negotiations, says he opposes the deal. Walker suggests he could get allies to reimpose strict sanctions on Iran, without specifying how he’d pull that off. —David A. Graham
10:17 p.m. Sorry, Rand Paul: you can't win over anti-war voters by merely saying that you favor negotiating generally even as you say you'll vote against the best chance to avoid a war with Iran. —Conor Friedersdorf
10:13 p.m. Trump says, "This country owes $19 trillion, and they need someone like me to straighten out that mess." What's he going to? Declare national bankruptcy? —David A. Graham
10:13 p.m. Donald Trump's many bankruptcies are arguably his biggest liability. Not just literally, but also the thing most likely to tarnish his super-businessman image in the eyes of his populist supporters. Declaring bankruptcy and explaining it away sounds an awful lot like what the elite hucksters do. —Conor Friedersdorf
10:11 p.m. The spectre of Mitt Romney is haunting this debate. Many thought the 2012 debates weakened him by forcing Romney to act more conservative in the primary than a general electorate could stomach. So far, the Republican debates seem designed to prevent a repeat. Instead of testing their conservative bona fides, the questions in the first hour focused on weaknesses: Bush and dynasties, Kasich on Medicare expansion, Carson on inexperience, and Trump on, well, everything. And the moderators keep hammering the same theme: Can you beat Hillary Clinton in 2016? —Matt Ford