Former Massachusetts governor Mitt Romney (R) won both of Tuesday’s GOP presidential primaries, routing former senator Rick Santorum (R-Pa.) in Arizona and narrowly securing a win in his birth state of Michigan.

A supporter of former Massachusetts governor Mitt Romney celebrates during a primary night gathering on Tuesday. (Justin Sullivan — Getty Images)

How have Romney’s wins changed the race for the GOP presidential nomination?

Join the Post’s David Fahrenthold at 11:30 a.m. ET for a live chat on Tuesday’s primaries and the road ahead.

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