The Michigan Republican Party State Central Committee has decided the state GOP will use a closed presidential primary next year.
That means voters will have to declare a party preference to participate. If Michigan sticks with a February 28 election date, the state GOP could lose half its delegates to the national nominating convention for meeting earlier than party rules allow.
Michigan GOP leaders say the early influence is worth the risk. Michigan Democrats plan to hold closed caucuses May 5, and will likely withdraw from the primary election ballot.