MS NOW

Obama, Kerry score a generational breakthrough

The nuclear agreement with Iran is arguably a greater diplomatic accomplishment than anything we've seen in modern American history.

Secretary of State John Kerry greets President Barack Obama before the president's State of the Union address during a joint session of Congress on Capitol…AP

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."