With just over three weeks to go before Election Day, three new national polls in the race for the White House suggest former President Donald Trump is erasing the gains made by Vice President Kamala Harris in recent months after defeating President Biden The Democratic Party’s top ticket for 2024 had been replaced.

The polls suggest there is a margin of error race between the two major parties’ presidential candidates, with Trump enjoying some momentum in the final stages.

Harris led Trump 50% to 48% among likely voters surveyed in an ABC News/Ipsos poll, up from the vice president’s six-point lead last month.

WHAT THE LATEST FOX NEWS POLLS SHOW ABOUT THE 2024 ELECTION

Former President Trump and Vice President Kamala Harris, the 2024 Republican and Democratic presidential candidates. (Fox News)

According to an NBC News national poll of registered voters, the vice president and former president tied at 48%. That’s a big change from a month ago, when Harris had a five-point lead.

Additionally, a CBS News/YouGov poll of likely voters showed Harris with a three-point lead over Trump, slightly less than a month ago when he had a four-point lead.

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After President Biden’s disastrous performance in the debate against Trump in late June, the former president began to build a single-digit lead over the White House incumbent.

However, Biden’s exit from the presidential election and the Democrats’ rapid consolidation around the vice presidential nomination upended the dynamics of the race.

Vice President Kamala Harris speaks during a campaign rally at East Carolina University on Sunday, Oct. 13, 2024, in Greenville, North Carolina. (AP Photo/David Yeazell)

Harris, fueled by a wave of energy and excitement, experienced a surge in fundraising and positive ratings, pushing her past Trump in the presidential election. This trend continued at the Democratic National Convention in late August and the first and probably only debate between the two standard-bearers in early September.

However, as summer turned into fall, Harris’ positive ratings appear to have waned, Republicans are moving back to Trump, and the already wide gender gap in support for the two candidates has widened even further.

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“Harris’ campaign appears to have stalled as her image has faltered and the perception that she is a ‘second Biden administration’ remains,” longtime Republican pollster Neil Newhouse told Fox News.

Newhouse, a veteran of numerous Republican presidential campaigns, argued that Harris is “on the verge of snatching defeat from the jaws of victory.”

Former President Trump gestures as he takes the stage at a campaign rally on October 12, 2024 in Coachella, California. (Mario Tama/Getty Images)

While national polls are useful for showing the state of affairs, the presidential election is not based on the popular vote at the national level but rather is a battle for the states and their electoral votes.

Recent polls in the seven key battlegrounds, whose razor-thin results decided Biden’s victory over Trump in 2020 and will likely determine who wins the 2024 election, also suggest a race on margin of error.

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A leading nonpartisan pollster said the jury is still out on whether Trump is gaining momentum.

“We need more data points before we can show poll movements as dynamics,” David Paleologos, director of the Political Research Center at Suffolk University, told Fox News.

Paleologos, who conducts the USA Today/Suffolk University polls, said: “It could be a dynamic, or it could be the natural closing of the divide in a very polarized country.”

Get the latest updates on the 2024 election, exclusive interviews and more at our Fox News Digital Election Center.