Thirty-three states will hold U.S. Senate elections this November. All will have minor party or independent candidates on the ballot, except Massachusetts, Nebraska, Ohio, Rhode Island, and Wyoming; and whether there is a third choice in New Mexico and Pennsylvania depends on lawsuits still undecided.

The Green and Constitution Parties are on the Nebraska ballot, but neither chose to run anyone for US Senate. The Libertarian Party is on the Wyoming ballot but it also chose to run no one for US Senate.