Midterm election results updates: Dems keep control of Senate with Nevada win

Former President Donald Trump spent part of Election Day stoking unfounded fears of "fraud" in the midterms -- with voting still underway -- and continued to hint at a future bid for the White House himself.

Trump said Tuesday at his Mar-a-Lago estate in Florida that he will announce his vice president pick "very soon," though he has yet to officially announce he is running in 2024.

A reporter asked Trump who he would pick for a vice president.

"Oooh," he replied. "I'll let you know very soon."

Those comments come one day after he teased on Monday that he will make a "very big announcement" on Nov. 15.

Sources told ABC News last week that Trump could announce a 2024 presidential run as early as next week -- though the sources cautioned that discussions about the specifics, including a date, were still fluid.

On Tuesday, Trump also disparaged Senate Minority Leader Mitch McConnell and praised Florida's Rick Scott, the GOP Senate campaign chief, when asked about whom he would support for majority leader if his party retakes the chamber in the midterms.

-ABC News' Miles Cohen, Will Steakin and Laura Romero

Polls have now closed in Georgia, Indiana, Kentucky, South Carolina, Vermont and Virginia.

ABC News can project that Sen. Todd Young, R-Ind., and Sen. Tim Scott, R-S.C., will hold on to their Senate seats.

Their Democratic challengers are Thomas McDermott Jr. and state Rep. Krystle Matthews, respectively.

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Senate race win projections in Indiana, South CarolinaSen. Todd Young, R-Ind., and Sen. Tim Scott, R-S.C., held on to their Senate seats, according to ABC News projections.

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Vice President Kamala Harris spent part of her day on radio shows expressing support for Democratic candidates in key races in Wisconsin and Pennsylvania.

In a brief appearance on The Earl Ingram Show Tuesday morning, Harris pushed Wisconsin Gov. Tony Evers' reelection bid.

"He has cut taxes for working families. He's lowered costs for small businesses in Wisconsin in Milwaukee, and he must be reelected because he really does stand for our democracy and for freedom and equality," she said.

Harris also said electing Wisconsin Lt. Gov. Mandela Barnes to the Senate would play a crucial role in the president's ability to sign the John Lewis Voting Rights Advancement Act into law.

"It would be so important to put back teeth in the Voting Rights Act that folks marched and died for, and these are the things that are at stake," she said.

In another radio interview later in the day on Philadelphia's Evening WURDs, Harris urged voters in Pennsylvania to vote for Lt. Gov. John Fetterman for Senate, particularly as the Senate attempts to pass an assault weapons ban.

"Democrats understand the need to extend and to renew the assault weapons ban, and we need John Fetterman in the United States Senate to have the votes toward doing that," she said.

Harris also called on voters to elect state Attorney General Josh Shapiro as the governor of Pennsylvania "because people have a right to live in safe communities" and not be threatened by gun violence, she said.

-ABC News' Armando Tonatiuh Torres-García