MS NOW

Christie, Rubio stumble badly on basics

Marco Rubio believes the national debt is a greater threat than the climate crisis. That's bonkers.

New Jersey Gov. Chris Christie, Florida Sen. Marco Rubio, and retired neurosurgeon Ben Carson participate in the Republican presidential primary debate on Aug. 6, 2015 at the Quicken Loans Arena in Cleveland, Ohio. (Photo by Mandel Ngan/AFP/Getty)
New Jersey Gov. Chris Christie, Florida Sen. Marco Rubio, and retired neurosurgeon Ben Carson participate in the Republican presidential primary debate on Aug. 6, 2015 at the Quicken Loans Arena in Cleveland, Ohio.AFP/Getty Images

Steve Benen is a producer for "The Rachel Maddow Show," the editor of MaddowBlog and an MS NOW political contributor. He's also the bestselling author of "Ministry of Truth: Democracy, Reality, and the Republicans' War on the Recent Past."