Arizona’s primary elections: Which US races to watch and why they matter
Arizona voters head to the polls on Tuesday to choose party nominees in races that could help determine who controls the US House of Representatives and whether Republicans can flip one of the country’s most competitive Democratic governorships.
Intelligence analysis by Llama

Arizona voters will choose party nominees for governor, congressional seats, and state offices, with the Republican primary for governor being a key contest. The results will set up key congressional races in one of the country’s most closely watched battleground states.
Arizona voters are choosing party nominees for governor, congressional seats, and state offices. The Republican primary for governor is a key contest, with two candidates representing competing visions for the future of Arizona’s Republican Party.
Analysis
A Swing State in Play
Arizona has swung between the two parties in recent election cycles, with Democrat Joe Biden narrowly winning the state in 2020 and Donald Trump reclaiming it in the 2024 presidential election. The state's voters will choose party nominees for governor, congressional seats, and state offices, with the Republican primary for governor being a key contest. The results will set up key congressional races in one of the country’s most closely watched battleground states.
A Showdown Between Conservative and Pragmatic Republicans
The Republican primary for governor has largely become a showdown between Andy Biggs and David Schweikert, two longtime congressmen who represent competing visions for the future of Arizona’s Republican Party. Biggs, a former chair of the conservative House Freedom Caucus, is closely aligned with Trump and has built his campaign around the president’s agenda. Schweikert has also supported many of Trump’s priorities in Congress, but has cast himself as a more pragmatic conservative.
Congressional Races to Watch
The primary will also decide who will compete for Arizona’s open 1st Congressional District, a seat left open after Representative David Schweikert decided to run for governor. Republicans are choosing between state Representative Joseph Chaplik, former NFL kicker and sportscaster Jay Feely, who has Trump’s endorsement, and technology executive John Trobough. On the Democratic side, doctor and former state Representative Amish Shah, who narrowly lost to Schweikert in 2024, is competing against former news anchor Marlene Galan-Woods.
Key points
- Arizona voters will choose party nominees for governor, congressional seats, and state offices.
- The Republican primary for governor is a key contest, with two candidates representing competing visions for the future of Arizona’s Republican Party.
- The primary will also decide who will compete for Arizona’s open 1st Congressional District, a seat left open after Representative David Schweikert decided to run for governor.
If the Republican primary for governor is won by a more pragmatic candidate, it could lead to a more moderate Republican Party in Arizona, which could have positive implications for the state's politics and economy.
If the Republican primary for governor is won by a more extreme candidate, it could lead to a more polarized Republican Party in Arizona, which could have negative implications for the state's politics and economy.

