Former President Donald Trump is leading his opponent Kamala Harris among early voters in swing states, according to a new poll.

The poll, conducted between October 11 and 13 by Harvard University, HarrisX and The Harris Poll, found Trump narrowly ahead of Harris (47 percent) among early voters in battleground states with 48 percent of the vote.

The poll surveyed 3,145 registered voters and had a margin of error of plus or minus 1.8 percentage points. It was not stated how many early voters were surveyed.

Newsweek emailed the Harris and Trump campaigns seeking comment.

Democrats tend to vote by mail earlier and more often than Republicans. A recent Gallup poll released Oct. 9 found that 46 percent of Democrats planned to vote early, compared to 31 percent of Republicans.

The poll also found Harris leading the nation among early voters with 51 percent, with Trump leading at 43 percent.

Early voters could be crucial to victory in battleground states. About 70 percent of the more than 150 million votes cast in 2020 were cast before Election Day — a huge increase from previous years that had much to do with the COVID pandemic.

The Harvard University poll showed Trump leading among likely voters in battleground states at 49 percent, to Harris’s 47 percent.

However, among likely voters nationwide, Harris led with 49 percent to Trump’s 47 percent, with the former president leading among male voters, white voters, Asian-American voters and rural voters. Harris led among female voters, black and Latino voters, and urban and suburban voters.

Harris is likely to win the popular vote in November, with poll tracker FiveThirtyEight pegging her nationally with a 2.4-point lead over Trump as of Monday. If Harris wins the battleground states of Pennsylvania, Michigan, Wisconsin and Nebraska’s 2nd District, she will reach the electoral threshold needed to win.

According to FiveThirtyEight’s forecast, Harris is expected to win in Nevada, Pennsylvania, Wisconsin, Michigan and Nebraska’s 2nd electoral district by a total of 276 Electoral College votes, unless there is a big upset elsewhere that would give her enough votes to win to get across the finish line. The pollster predicts Trump will win in Arizona, Georgia and North Carolina, giving him a total of 262 votes.

However, RealClearPolitics’ forecast shows that, taking into account the RCP polling average in every state, including the disagreements, Harris will win in Wisconsin and Nebraska’s 2nd District, while Trump will win in Nevada, Pennsylvania, Michigan, Arizona, Georgia and North Carolina , giving him 302 Electoral College votes to Harris’ 236 votes.

A Fabrizio/McLaughlin poll released last week showed Trump leading in every swing state. The largest lead was 5 points in Georgia. The poll, conducted between Oct. 6 and Oct. 9, had a margin of error of plus or minus 3.5 percentage points.