Sarah Palin will not be running for president in 2012.

Sen. John McCain responds, “Sarah announces she’s not running for president — I am confident she’ll continue to play an important role in our party and for our nation.”

One of my first thoughts is that it is a bit surprising that she would give the thumbs up to The Undefeated, which closes with her saying, “Mr. President, game on!” and certainly implies that a Palin-Obama showdown was in the works.