Sen. Marco Rubio, R-Fla., appeared Friday morning on CBS News to discuss his presidential campaign, but he ended up facing a panel of journalists who wanted to know why he voted this week against gun control legislation even after a shooting spree in San Bernardino, Calif.

“None of these crimes that have been committed, or in this case, what I believe was a terrorist attack in California, would have been prevented by expanded background checks,” he told the CBS This Morning panel.