Politico ^[1] notes that “The rules pit the real race for Michigan at the district, not statewide level.”  Here’s what that means:

Michigan awards its 30 delegates based on the new congressional district lines drawn in 2012 redistricting, with two delegates given to the candidate who wins each of 14 districts. Two additional delegates are allocated based on the statewide popular vote.

Thus, the winner of the state’s popular vote may not be the same candidate who wins a majority of the state’s delegates.

The takeaway is to be wary of statewide exit polls that declare a “winner” since what really matters in terms of GOP convention delegates is who won a majority of new congressional districts.