As February began, Rick Santorum's presidential bid was polling in the mid-teens among Republicans. Now, we find ourselves two weeks deep in the Santorum Era. His national polling number has doubled since he won the Trifecta Tuesday events in Colorado, Minnesota and Missouri.
Those were small contests with few participants and zero delegates at stake. But Santorum threatens to win far larger and more meaningful tests in Michigan and Arizona a week from now, and in Ohio a week after that.