New Hampshire has four Electoral College votes. While Trump lost the state by less than half a percentage point in the 2016 race against then-Democratic nominee Hillary Clinton, Biden had been favored to win in 2020.
The state is typically considered a battleground, though it has voted Democratic in six of the last seven presidential elections. The state's polls closed at 8 p.m. ET.
Trump had traveled to the Granite State over the summer and returned there in late October.