Here are the candidates for Arizona's U.S. Senate seat in the 2022 midterms.

Senior Sen. Kyrsten Sinema won't be up for reelection until 2024.

Mark Kelly

Mark Kelly for Senate

Mark Kelly

Party: Democrat
Website: markkelly.com

The incumbent, Mark Kelly won a special election in 2020 to serve the final two years of the late Sen. John McCain’s term in office. Now he’s running for reelection to serve a full six-year term. The American astronaut never ran for office before winning the election two years ago, but politics runs in the family — his wife is former Rep. Gabrielle Giffords, who served southern Arizona in Congress before she was injured in a 2011 mass shooting. Kelly holds a strong fundraising advantage over his GOP challengers, and faces no opponents in the Democratic primary.

Blake Masters

Thiel Fellowship

Blake Masters

Party: Republican
Website: blakemasters.com

The Peter Theil acolyte may be running behind in most polls, but he appears to be No. 1 for the races’ most coveted endorsement — that of former President Donald Trump. Masters’ candidacy may well depend on the whims of Trump, but he’s at least assured financial support from his longtime business partner, Thiel, a billionaire tech investor — dollars that make him at least a formidable candidate. This is the first time Blake Masters has ever run for office.

→ KJZZ's Voter Guide