Mitt Romney’s sons are making another television appearance. They showed up last month on Conan O’Brien’s couch. This week, they’re featured on Rock Center in their first joint television news interview of the 2012 campaign. The boys discuss some serious concerns they had as their father decided to run for president (above). In another lighthearted moment, they defend Mitt Romney’s corny jokes on the campaign trail (below). Catch them Thursday evening on NBC’s Rock Center.