Republican Blake Masters is expected to announce a 2024 run for the Arizona Senate seat of Independent, former Democrat, Senator Kyrsten Sinema (I-AZ). Master’s ran in last year’s midterms where he was comfortably beaten by incumbent Senator Mark Kelly (D-AZ) – a divisive result which delivered the first full term Senate seat for Democrat in the state since 1962 and contributing to Democrats retaining overall control of the Senate.

• The race could prove decisive again with the potential for an unpredictable three-way race between Sinema, likely Democrat candidate Rep Ruben Gallego (D-AZ), and a Republican.
• The Wall Street Journal reports: “[Masters'] expected announcement in coming weeks could put him on a collision course with Kari Lake, a popular fellow Republican who is leaning toward announcing her own Senate campaign this fall.”
• Should Lake, a key ally of former President Trump who lost a bid for Governor last year, take the nomination, Republicans may be concerned that Trump’s influence may produce a similar groundswell of support for Democrats which delivered a strong midterm performance for Democrats statewide.
• Recent polls suggest that Gallego has the edge over three potential Republican candidates.