Some Republicans fear the party is poised to repeat past mistakes by nominating candidates in Tuesday's primaries who are viewed as too extreme to sway moderate voters. The internal divisions raise questions about whether Arizona Republicans can unify behind nominees capable of winning competitive general election races in a key swing state.

Primary contests across the state have highlighted tensions between hardline factions and more traditional conservatives. Candidates aligned with the party's most activist wing have gained momentum in several races, prompting concern among strategists who argue that such nominees struggle to appeal to the broader electorate needed to flip seats.

The dynamic echoes previous cycles where primary victories by polarizing figures led to general election losses in races Republicans were favored to win. Party leaders worry that failure to coalesce around electable candidates could cost them critical opportunities in a state where margins are often razor-thin.

With Tuesday's primaries serving as a crucial test, the outcome will signal whether the state GOP can navigate its ideological divides or risk another cycle of self-inflicted setbacks.