Commentary: Sen. Martinez's resignation disappointing

By the time Sen. Mel Martinez announced late last year that he would not stand for reelection, it was clear that he had lost his appetite for the job. There is no shame in that — juggling responsibilities to his party, his constituents and his family obviously took a toll.

But calling it quits after one term is a far cry from calling it quits before the term is over. No doubt, holding a Senate seat when the other party controls the majority and also controls the White House can be frustrating. But that's true for dozens of senators at any given time. It does not justify stepping down before finishing the job.

Sen. Martinez's resignation is disappointing for a variety of reasons.

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