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Scarborough: Romney has DeMint and Bush, so it's game over
Top Talkers: In one week, Mitt Romney has picked up key endorsements from Jeb Bush and Sen. Jim DeMint, R-S.C., but Rick Santorum sees no difference between President Obama and Romney. The Morning Joe panel – including the New York Times' Charles Blow, financier Steven Rattner, the Huffington Post's Sam Stein and Mike Barnicle -- discusses the week in GOP.