Nebraska GOP Senator to Retire

Nebraska Sen. Mike Johanns has informed his state's governor that he doesn't intend to run for re-election next year, sources tell NBC News. Johanns is notable as the man who replaced Chuck Hagel in the Senate—and is now one of only two Senate Republicans publicly backing his defense nomination. He hasn't made headlines often, but you might remember the time he tried to ban Japanese cars, or the time he butted heads with John McCain over popcorn. (More Mike Johanns stories.)