According to a poll by CNN, Edison Research, and Catalist of electoral officials in all 50 states and Washington, DC, those votes account for nearly 43% of registered voters nationwide.
Fourteen states have already cast more than half of their registered voters by November 3rd.
Nationwide, the more than 90 million ballots already cast account for around 66% – almost two thirds – of the more than 136.5 million ballots cast in the 2016 presidential election.
About half of the votes already cast in this cycle come from these 16 key states that will play a crucial role in deciding who will win the presidency this year.
Some voter information comes from Catalist, a company that provides data, analysis, and other advocacy services for Democrats, academics, and nonprofits, and provides insight into voting results before November.
Supporters for Democratic candidate Joe Biden have shown a strong preference for mail-in voting, while most supporters for President Donald Trump say they want to vote on election day.
Trump and Biden’s schedules in the final section of this campaign reflect the focus on these competitive states.
On the last weekend before election day, Trump spends Saturday in Pennsylvania while Biden fights with former President Barack Obama in Michigan. Biden then travels to Philadelphia on Sunday as the president has five rallies scheduled in five key states – Michigan, Iowa, North Carolina, Georgia, and Florida.
CNN’s Veronica Stracqualursi contributed to this report.