Maine would vote in its first ever United States presidential election, having become the 23rd state by splitting off Massachusetts on March 15 of the same year. The state would cast its nine electoral votes to Democratic Republican candidate and incumbent President James Monroe, who would win the state by a margin of 91.56%.
Effectively, the 1820 presidential election was an election with no campaign, since there was no serious opposition to Monroe and Tompkins. In fact, Monroe won all the electoral votes barring one from neighboring New Hampshire, which was cast for Secretary of StateJohn Quincy Adams.