Tensions running high in several spots around the country.
In Florida, police are searching for the person who fired a pellet gun into a crowd of Trump supporters.
Two people were injured, including a woman who says she was part of the group gathering for a pro-President Donald Trump rally on a Fort Lauderdale street, when a dark-colored Porsche drove by and someone fired a BB gun.
Both victims were treated on the scene.
Authorities in Arizona increased security outside Phoenix's election center where pro-Trump supporters have been gathering.
The state has emerged as a key battleground for Joe Biden and President Trump.
The Maricopa County sheriff says the demonstrations have been peaceful so far, and he wants them to stay that way.