(AP Photo/Carlos Osorio)

Michigan Sen. Debbie Stabenow (D) has beaten back Republican challenger Pete Hoekstra. 

Republicans targeted Stabenow early in the cycle but failed to mount a strong challenge in the Wolverine State. Hoekstra's first campaign ad was met with charges of racial insensitivity, an apparent blow to the former congressman's campaign. He struggled to compete in fundraising and never caught up to Stabenow in polls.