The Republican presidential candidate starts Tuesday from his home base in Palm Beach, Florida, where his campaign says Trump will address the press.

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The former president will then hold two events in Pennsylvania, which, with 19 electoral votes, represents the largest prize among the key swing states.

Meanwhile, the Democratic nominee is in the nation's capital, taking a day off from swing-state travel as she delivers what the Harris campaign is touting as her closing argument in an address at the Ellipse in front of the White House.

Democratic presidential candidate Vice President Kamala Harris (right) and her running mate, Minnesota Governor Tim Walz, leave after speaking during a campaign rally at Burns Park in Ann Arbor, Michigan, on Monday, October 28, 2024. (AP Photo/Paul Sancya)

Key down-bottom contests in today's early voting states

There are two competitive House districts in the states that began voting on Friday:

• Colorado's 3rd District: The 3rd District covers most of western Colorado. Thanks to its largely rural, working-class population (Aspen is the exception), it has been securely Republican for over a decade. But in 2022 there were only 546 votes. Incumbent Rep. Lauren Boebert is moving to safer Republican territory this year, making this a race between her former Democratic challenger Adam Frisch and Republican attorney Jeff Hurd. It's Lean R in the rankings.
• Colorado's 8th District: The 8th District begins in rural Weld County, where Trump won by 18 points in 2020. But the further down you go, the more suburban it becomes. Strong Democratic turnout in Adams County, which Biden won by 16 points, gave Democratic Rep. Yadira Caraveo her first win of 2022. This time, the incumbent is running against Republican state Rep. Gabe Evans. This is a toss-up race.

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Voting booths are seen at the Broomfield City and County Building in Colorado. (Getty)

How to vote in Colorado

This is a guide to registration and early voting. Comprehensive and up-to-date information on eligibility to vote, processes and deadlines can be found at Vote.gov and the election website for Colorado.

Vote by mail

Postal voting began in Colorado on October 11th. Residents do not need to provide an excuse to receive a ballot. The state proactively mailed ballots to eligible voters between October 11th and 18th. These ballots must be delivered to state officials by November 5th.

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Early in-person voting

Colorado offers early in-person voting, but it varies by location. Be sure to check the state's election website for early voting dates and locations.

Voter registration

Coloradans can register to vote in person, by mail or online at any time during early voting and on Election Day. October 28 is the last day to register to vote and receive a mail-in ballot.

Fox News Power Rankings presidential map.

How to vote in Washington, DC

This is a guide to registration and early voting. Comprehensive and up-to-date information on eligibility to vote, processes and deadlines can be found at Vote.gov and the election website for Washington, DC

Vote by mail

Washington, DC began mail-in voting on Monday. Registered voters do not need to request a ballot as the county began mailing ballots to all active registered voters beginning Sept. 30. Ballots can be returned by mail or in person up until Election Day.

Fox News Power Rankings House of Representatives.

Early in-person voting

In Washington, DC, early in-person voting will begin on October 28th and continue through November 3rd.

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Voter registration

The deadline for residents to register to vote online or by mail was October 15. You can also register in person during early voting (October 28-November 3) and on Election Day.

Fox News' Paul Steinhauser contributed to this report