Live election results: Who's winning the House, uncalled Senate races

With her selection as President-elect Donald Trump 's incoming White House chief of staff, veteran Florida political strategist Susie Wiles moves from a largely behind-the-scenes role of campaign co-chair to the high-profile position of the president's closest adviser and counsel.

She's been in political circles for years. But who is Wiles, the operative set to be the first woman to step into the powerful role of White House chief of staff?

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Nevada: The late updates Thursday in Clark and Washoe counties in Nevada didn't add many votes to the tally in the races for president and U.S. Senate. The deadline for mail ballots to arrive and be counted is Saturday. With tens of thousands of ballots potentially still left to count in the state's two biggest counties, the races are too early to call.

Arizona: Another day of vote counting in Arizona added tens of thousands of votes to the tally on Thursday, but there remain hundreds of thousands of ballots left to count — including nearly half a million in Maricopa County. Officials there are still working their way through advance votes that arrived in October. The races for president and U.S. Senate remain too early to call.

Republican leaders projected confidence Thursday that they will keep control of the U.S. House as more races were decided in their favor, while Democrats insisted they still see a path toward the majority and sought assurances every vote will be counted .

The GOP picked up two more hard-fought seats in Pennsylvania , which became a stark battlefield of Democratic losses up and down the ticket. Democrats notched another win in New York , defeating a third Republican incumbent in that state.

Both parties in the House huddled privately on conference calls to assess the political landscape as Congress prepared to return next week to a changed Washington , where a sweep of MAGA-infused GOP power is within reach for President-elect Donald Trump .

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