Historically, the Upper Peninsula tended to vote for the Democratic Party due to its legacy of mining and historically high union membership. However, as union strength in the peninsula has declined, the region has become steadily less receptive to the Democratic party, and has alternately swung toward either party in recent years. Split-ticket voting has become a common practice in the peninsula. In the 2012 presidential election, Republican presidential candidate Mitt Romney carried all but two counties. In the 2016 presidential election, Republican presidential candidate Donald Trump won all counties across the Upper Peninsula except Marquette County, a feat he repeated in 2020.