Compiled Laws, Chapter 168. Michigan Election Law § 168.45

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.