Here are the key races that haven’t been called yet

(NewsNation) — Former President Donald Trump is projected to win a second term in the White House, but the outcomes of other hotly contested races remain unclear as election officials tally votes Wednesday.

The fates of several House and Senate seats were also uncertain as totals continued to roll in from precincts throughout the country.

Election officials publish unofficial results after the polls close on Election Day, but those results will fluctuate as officials count in-person, mail-in, provisional, overseas and military ballots.

Each state has its own rules for when different kinds of ballots can be counted.

Throughout election night and — in some states — several days later, unofficial results will periodically change to reflect those totals.

US Senate races

Arizona

Democratic Rep. Ruben Gallego, and Republican Kari Lake are competing for Arizona’s open Senate seat.

Green Party candidate Eduardo Quintana is also campaigning for the role.

Pennsylvania

Republican David McCormick is challenging Democrat incumbent Sen. Bob Casey Jr. in a race that could influence which party controls the Senate. 

House races

Alaska

Democratic Rep. Mary Peltola, the first Alaskan Native woman to represent the state in Congress, is seeking reelection to Alaska’s only at-large congressional district. 

Peltola — who won her 2022 race against former Alaska Gov. Sarah Palin — faces Republican Eric Hafner, Democrat Nicholas “Nick” Begich and Alaskan Independence Party Rep. John Howe.

Arizona

Republican U.S. Rep. David Schweikert faces Democrat Amish Shah in the race for Arizona’s 1st Congressional District.

In the state’s 6th Congressional District, Democrat Kristen Engel faces Republican incumbent Juan Ciscomani.

California

California voters will elect 52 candidates to serve in the U.S. House.

Results of the state’s 13th, 22nd, 27th, 41st, 45th and 47th Congressional District races were still underway Wednesday morning. 

Colorado District 8

Democrat U.S. Rep. Yadira Caraveo faces Republican Gabe Evans in the race for Colorado’s 8th Congressional District.

Oregon District 5

Republican U.S. Rep. Lori Chavez-DeRemer and Democrat Janelle Bynum are both campaigning for Oregon’s 5th Congressional District.