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Could Huckabee and Santorum backers derail Cruz in Iowa?

The Iowa caucuses are four weeks from today. We're reaching a new stage in the race, where alliances are considered, formed, and occasionally broken. Buckle up.

Former Arkansas Gov. Mike Huckabee, Texas Sen. Ted Cruz, Louisiana Gov. Bobby Jindal and former Pennsylvania Sen. Rick Santorum gather after speaking at the Homeschool Iowa's Capitol Day, April 9, 2015, in Des Moines, Ia. (Photo by Charlie Neibergall/AP)
Former Arkansas Gov. Mike Huckabee, Texas Sen. Ted Cruz, Louisiana Gov. Bobby Jindal and former Pennsylvania Sen. Rick Santorum gather after speaking at the Homeschool Iowa's Capitol Day, April 9, 2015, in Des Moines, Ia.AP

Steve Benen is a producer for "The Rachel Maddow Show," the editor of MaddowBlog and an MS NOW political contributor. He's also the bestselling author of "Ministry of Truth: Democracy, Reality, and the Republicans' War on the Recent Past."