The race for the White House is entering the home stretch, with Republican President Donald Trump and Democratic candidate Joe Biden being formally nominated at their parties' national conventions this month.
Here are the key upcoming dates in the 2020 presidential contest:
August 17-20: The Democratic National Convention. The event, which was originally scheduled to take place in mid-July in Milwaukee, Wisconsin, has been dramatically scaled back and will be almost entirely virtual due to the coronavirus pandemic. Biden will deliver a prime-time address from his home state of Delaware on the final night of the event.
August 24-27: The Republican National Convention. The party's official convention business will be conducted in Charlotte, North Carolina, during a scaled-back event on August 24, after the pandemic scuttled plans to move the convention to Florida. Trump has indicated he will give a prime-time speech on August 27 from a location still to be determined, possibly the White House. The party has not released details about other convention programming that week.
September 4: North Carolina, a key battleground state, becomes the first state to start sending mail ballots to voters. Other swing states, including Michigan, Pennsylvania and Wisconsin, are also scheduled to mail out ballots before the end of the month.
September 29: First presidential debate, Case Western Reserve University and Cleveland Clinic, Cleveland, Ohio. The debate was originally scheduled to take place at the University of Notre Dame in Indiana, but the school withdrew as host due to the pandemic.
October 7: Vice presidential debate, the University of Utah, Salt Lake City, Utah.
October 15: Second presidential debate at the Adrienne Arsht Center for the Performing Arts in Miami, Florida. The debate was originally scheduled to take place at the University of Michigan, but the school withdrew as host due to the pandemic.
October 22: Third presidential debate at Belmont University in Nashville, Tennessee.
November 3: Election Day. Due to the expected widespread use of mail-in voting, it is possible a winner will not be known for days as states tally ballots.
December 14: Members of the Electoral College cast their ballots for president. Under the US system, the winner of each state's popular vote earns that state's electoral votes, which are apportioned by population. The candidate who receives a majority of the 538 electoral votes available, or 270, wins the presidency.
January 6, 2021: Congress meets at 1 pm in Washington to count the electoral votes and declare a winner.
January 20, 2021: Inauguration Day. The winner and his running mate are sworn in as president and vice president at the US Capitol in Washington.