There are 6 days until the election. Here's what to know.

We're six days out from Election Day. Numbers compiled by @electproject show at least 71 million people have already voted. In other numbers, The Guardian reports 23% of registered voters in swing states (14.8 million out of 62.6 million) have had their mail-in ballots accepted.

But that doesn’t mean we’ll actually know who won the presidential race on Tuesday. Many states have seen record-setting mail-in voting in the presidential race due to the coronavirus pandemic. Voting experts have warned for weeks: Unless there's a clear and decisive winner, brace for an election week or weeks, not an election night.

Election experts worry a prolonged outcome this year could set the stage for greater controversy – potentially attempts by candidates to invalidate results – because of continued, but unfounded, attacks on mail-in voting as rife with fraud.

Elsewhere: A new report says five states, including several that are presidential battlegrounds, are at a high risk for activity by armed groups of civilians around the Nov. 3 election.

The Armed Conflict Location and Event Data Project (ACLED) and MilitiaWatch warned about such movements leading up to and following the election in Pennsylvania, Georgia, Michigan, Wisconsin and Oregon, especially in state capitals and surrounding towns, medium-sized cities and suburban areas.

President Donald Trump supporters and Democratic presidential candidate Joe Biden supporters square off in front of Penn Place office building in Wilkes-Barre, Pa., Thursday, Oct. 22, 2020. The Luzerne County Election Bureau is located inside Penn Place where early walk-in voting has started.
President Donald Trump supporters and Democratic presidential candidate Joe Biden supporters square off in front of Penn Place office building in Wilkes-Barre, Pa., Thursday, Oct. 22, 2020. The Luzerne County Election Bureau is located inside Penn Place where early walk-in voting has started.

On the campaign trail

The campaigns turn to swing-state Arizona today. President Donald Trump will hold two rallies – in Bullhead City and Goodyear – while Sen. Kamala Harris, the Democrats' vice presidential nominee, will meet with Latina business owners and encourage residents to vote in Tucson and Phoenix.

Democratic presidential nominee Joe Biden will give a speech today on health care, including his plan to address COVID-19. Vice President Mike Pence makes campaign stops in Mosinee, Wisconsin, and Flint, Michigan, on Wednesday.

Voting updates:

USA TODAY is keeping track of what's happening as voters around the country cast ballots. Here's the latest news:

  • A Michigan judge on Tuesday struck down the secretary of state's directive banning the open carry of guns at polling places on Election Day.

  • Two men facing voter intimidation charges in Michigan have been indicted in Ohio for a voter-suppression scheme.

  • Wildfires roaring through California and Colorado that have forced hundreds of thousands of residents to flee their homes have raised questions about if and how the displaced will be able to vote.

What else you need to know

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This article originally appeared on USA TODAY: Election 2020: How much longer until the election?