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

ABC News can project that Democrat John Fetterman will win Pennsylvania's Senate race, defeating celebrity Dr. Mehmet Oz in one of the most closely watched races in the nation.

Pennsylvania is one of a handful of battleground states that will determine which party controls the U.S. Senate.

"It's official. I will be the next U.S. Senator from Pennsylvania," Fetterman tweeted early Wednesday. "We bet on the people of Pennsylvania - and you didn’t let us down and I won’t let you down. Thank you."

Kari Lake took the stage early Wednesday at the Republican Watch Party in Scottsdale, where she told hundreds of her supporters that she will win -- but cautioned patience.

Lake, an outspoken election denier, began her brief remarks by telling the crowd: "We had a big day today and don't let those cheaters and crooks think anything different. Don't let them doubt in you."

Lake's been trying to sow doubt about the integrity of the election results in the lead up to Election Day. On Wednesday morning, she appeared to take a jab at her Democratic opponent Katie Hobbs, who currently serves as Arizona's secretary of state. Hobbs has called Lake's comments unacceptable.

"Are you willing for incompetency to play itself out and a victory to come at us?" Lake asked the crowd. "I am willing to wait for that and when we win and I think you will be within hours. I think it will be within hours. We will declare victory and we will get to work turning this around. Mo more incompetency, no more corruption in Arizona elections."

So far, the Kevin McCarthy watch party is notable for missing one guest … Kevin McCarthy.

Hotel staff initially prepared for the House Minority Leader to arrive around 9 p.m. Then, there was guidance he would speak around 11 p.m. It's now past midnight and the congressman has yet to make an appearance.

Guests at the event -- largely young GOP staffers -- are settling in for a long night. Some are expressing concern the calls are taking a lot longer than they expected -- and some key races aren't going their way. A select few guests are even finishing their drinks and leaving.

Hotel staff are scrambling. They tell ABC News they did not expect the event to go this long and the room will stay open past midnight, if McCarthy wants to speak. Meantime, the stage is set for a victory speech. But, the room where the speech would take place is largely empty.

McCarthy's team has not responded to questions on timing.

-ABC News' Jay O'Brien

ABC News can project that Democratic New Mexico Gov. Michelle Lujan will win reelection against former meteorologist Mark Ronchetti, the Republican nominee.