Mich. Comp. Laws § 168.45: Cross or check mark as vote for presidential electors.

Sec. 45.

Marking a cross (X) or a check mark ( ) in the circle under the party name of a political party, at the general November election in a presidential year, shall not be considered and taken as a direct vote for the candidates of that political party for president and vice-president or either of them, but, as to the presidential vote, as a vote for the entire list or set of presidential electors chosen by that political party and certified to the secretary of state pursuant to this chapter.