15 US States Voting in Presidential Primaries on Tuesday

FILE - Candidate supporters stand outside a polling location in the presidential primary election, Jan. 23, 2024, in Windham, New Hampshire. Super Tuesday is feeling anything but for many Americans, with the leading presidential contenders already appearing set.

Voters are headed to the polls in 15 U.S. states and American Samoa on Tuesday in the biggest day of balloting in presidential primary elections, with President Joe Biden and former President Donald Trump expected to roll to more victories and an inevitable face-off in the November national election.