QUOTE OF THE DAY…. On “Fox & Friends” this morning, Tucker Carlson explained why he considers the pending arms control treaty, New START, “basically irrelevant.”

“The START treaty? Like, what is it, 1979? Where does that come from? It’s so irrelevant to modern America.”

Oh my.

Remember, we’re talking about an arms treaty that has received the strong backing of eight former secretaries of state, five former secretaries of defense from both parties, the chairman of the Joint Chiefs of Staff, several of his predecessors, seven former Strategic Command chiefs, national security advisers from both parties, and nearly all former commanders of U.S. nuclear forces. Indeed, Adm. Mike Mullen has described New START as “essential” to America’s future security.

I remember when Carlson was a vaguely credible conservative journalist. He’s since been reduced to crank emails and national security analysis along the lines of, “Like, what is it, 1979?”

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Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.