With 12 days to go until Election Day, and President Donald Trump and former Vice President Joe Biden racing toward Nov. 3, voters have turned out in record numbers to cast their ballots early as the candidates head to Nashville for a final showdown.

More than 45 million Americans have already voted in the 2020 election, reflecting an extraordinary level of participation and interest despite unprecedented barriers brought on by the coronavirus pandemic.

The candidates face off in the final presidential debate of the 2020 election cycle from Belmont University in Nashville Thursday evening -- their last chance to pitch themselves to tens of millions of voters in primetime before Nov. 3.

In the final weeks of campaigning, the president has remained on defense as polls show him trailing nationally and in several battleground states key to his reelection hopes.

Biden, maintaining a lead in national polls -- his largest of the election, according to FiveThirtyEight's average -- stayed off the trail ahead of the debate, a pattern for the former vice president. The debate offers Biden a platform to solidify his lead so long as he avoids any major mistakes in the homestretch.

Polls indicate a huge pre-Election-Day edge for Biden and a sizable Trump advantage among those who plan to vote on Nov. 3 itself. Trump has sowed doubt in the mail-in ballot process -- and imminent election results -- for months.

All 50 states plus Washington, D.C., have some form of early voting underway. Check out FiveThirtyEight’s guide to voting during the COVID-19 pandemic here.