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

While former President Donald Trump still has a hold over Republicans and prepares to announce his candidacy for president in 2024, election night was not a "red wave" as Trump had expected.

Sources close to the former president described him as fuming, especially as candidates Trump backed performed poorly with voters.

Gov. Ron DeSantis' successful night in Florida also served as a wakeup call for Trump and his advisers.

"This is a sinking ship," one top Trump adviser told ABC News. "We're not going to beat that."

“This was the end of the Trump era and the dawn of the DeSantis era. Like every other Trump catastrophe, he did this to himself with stupid and reckless decisions,” a Republican operative close to the Trump orbit told ABC News.

Trump suffered losses across the country and was particularly unhappy as he watched two candidates he endorsed in Pennsylvania lose their elections: Senate candidate Dr. Mehmet Oz and gubernatorial candidate Doug Mastriano.

Trump told advisers he was also shocked the Georgia Senate race between incumbent Democratic Sen. Raphael Warnock and challenger Republican Herschel Walker was so close. (On Wednesday morning, with 96% of the expected vote reporting, Warnock and Walker were tied at 49%.)

Trump announced on Monday that he planned to make a big announcement next week. Some of those close to Trump are privately hoping that he decides not to run. But others who have spoken with him say he's unlikely to renege on his plans because he's spent the last two years teasing a run.

-ABC News’ Katherine Faulders, John Santucci, Olivia Rubin and Will Steakin

Pennsylvania's Dr. Mehmet Oz called Democrat Lt. Gov. John Fetterman at 9:30 a.m. Wednesday to concede, according to a tweet from Fetterman’s communications director.

Oz "was nothing but class" and wished Fetterman "all the best," Fetterman spokesman Joe Calvello told ABC News.

Fetterman was projected to win Pennsylvania's Senate race, one of the most closely watched races in the nation.

Tudor Dixon, the Republican nominee for governor in Michigan, called Democrat incumbent Gov. Gretchen Whitmer on Wednesday morning to "concede and wish her well."

"Michigan’s future success rests not in elected officials or government, but all of us. It is incumbent upon all of us to help our children read, support law enforcement, and grow our economy,” Dixon said in a statement. "Thank you to our volunteers and supporters for working so hard to forge a better Michigan. We came up short, but we will never stop fighting for our families."

Whitmer, elected in the blue wave in 2018, cast herself as a crucial backstop for abortion access while Dixon said she opposes abortion access.

-ABC News’ Paulina Tam

Alaska: With 67% of the expected vote reporting, Republican challenger Kelly Tshibaka leads with 44% of the vote, followed by Republican incumbent Lisa Murkowski with 43%.

Arizona: With 67% of the expected vote reporting, Democratic incumbent Sen. Mark Kelly leads with 52% of the vote, followed by Republican challenger Blake Masters with 46%.

Georgia: With 96% of the expected vote reporting, incumbent Democratic Sen. Raphael Warnock and challenger Republican Herschel Walker are tied at 49% of the vote, meaning a runoff election is likely.

Wisconsin: With 94% of the expected vote reporting, Republican incumbent Sen. Ron Johnson leads with 51% of the vote, followed by Democratic challenger Lt. Gov Mandela Barnes with 49%.

Nevada: With 80% of the expected vote reporting, Republican challenger Adam Laxalt leads with 50% of the vote, followed by incumbent Sen. Catherine Cortez Masto with 47%.

-ABC News’ Oren Oppenheim