Eighteen states count mail-in ballots that are received after Election Day, but a new order by President Trump challenges the practice.

Wisconsin voters decide on the state's next Supreme Court justice, and with it, the possibility of issues like abortion, voting and union rights. It's the most expensive court race in U.S. history.

In special elections in Florida Tuesday, voters in two congressional districts are choosing who to represent them in the U.S. House. Political watchers are paying close attention to the outcomes.

Florida's first and sixth Congressional districts are holding special elections this Tuesday.

The 22nd Amendment bans a person from being elected U.S. president more than twice. But some legal experts point to plausible strategies that President Trump could try to serve a third term.

The court could face cases on abortion, congressional maps and labor unions. With Tesla suing the state, Elon Musk is backing the conservative candidate who's received President Trump's endorsement.

Utah's new law is part of a larger effort by Republicans to limit the window in which mail ballots can be counted during an election.

The order tests the power of Trump's authority and would require voters using a federal form to show proof of citizenship to register to vote in federal elections. It's sure to be tested in court.

Under the Trump administration, the Justice Department has stepped away from some voting rights lawsuits, leaving behind a gap in enforcement of protections against racial discrimination in elections.

The populist message of Sen. Bernie Sanders' "Fighting Oligarchy" tour has resonated with voters frustrated by President Trump's agenda — and the Democratic Party's muddled response.