Kamala Harris to address the nation Wednesday

(NewsNation) — A top Kamala Harris aide told attendees at the campaign’s gathering Tuesday night that the vice president plans to address the nation on Wednesday.

"Thank you for believing in the promise of America ... We still have votes to count. We still have states that have not been called yet," Harris campaign co-chair Cedric Richmond said.

Harris campaign manager Jen O'Malley Dillon sent out a letter to staff on Tuesday night, assuring them that the current closeness of the race was "exactly what we prepared for."

In the email, Dillon said staff have known all along that this is a "razor-thin race."

Republican candidate Donald Trump is projected to win a presidential election for a second time, as NewsNation/ Decision Desk HQ projects he will win Pennsylvania.

Speaking to supporters at around 1:30 a.m. CT Wednesday, Trump said, “This was a movement like nobody’s ever seen before.

“Frankly, this was, I believe, the greatest political movement of all time,” Trump said. “There’s never been anything like this in this country and maybe beyond, and now it’s going to reach a new level of importance because we’re going to help our country heal.”

Trump’s running mate and now Vice President-elect JD Vance, who also spoke, called the former president’s win the greatest political comeback “in the history of the United States of America.”

“He turned out to be a good choice,” Trump said of Vance.

NewsNation's Jeff Arnold contributed to this report.