The two frontrunners are tied in Georgia with 48 percent of support. Trump previously had a 3-point lead over Biden in May, according to the survey.
Following President Biden's withdrawal last month, Vice President Harris is leading or tied with former President Trump in six of the seven battleground states.
According to a recent Cook Political Report Swing State Project study, Harris leads Trump by an average of one point in the battleground states of Arizona, Georgia, and Michigan.
Wisconsin, Pennsylvania, Nevada, and North Carolina. He is supported by 48% of voters in the seven battleground states, compared to 47% by Trump and 5% by those who said they were unsure.
According to the report, Harris has surpassed Trump since the May Swing State Project poll, when Joe Biden was the presumed Democratic contender for president.
The poll shows that Harris is now equal with Trump in Georgia and just ahead of him in five of the key battleground states.
The only state where Trump still has an advantage is Nevada, but since the poll's last survey in May, Harris has reduced that lead by six points.
With three points in Wisconsin and Michigan, Harris leads Trump. Trump led Biden by two points in Michigan and the incumbent in Wisconsin when the polls were last taken in May
Harris and Running Mate Tim Walz to Appear at First Rally TogetherVice President Kamala Harris secured enough Democratic Party delegate votes to become the party's nominee,