Without a primary to drain his campaign cash, Democratic treasurer nominee Andrei Cherny has a massive war chest as he prepares to launch a spate of television ads in time for early voting.

Three current or former Arizona lawmakers, a former presidential adviser and a business executive are among the candidates in Tuesday's primary election for state treasurer.

Doug Ducey reported spending $581,000 on the Republican primary for state treasurer, more than any state-level candidate except for Buz Mills' defunct gubernatorial campaign.

Ducey, the former CEO of Cold Stone Creamery, spent $100,000 in the week before the Aug. 10 trigger report was submitted to the Arizona Secretary of State's Office. Partly due to the spate of television ads he's aired, Ducey has spent more than every state treasurer candidate from the past two election cycles combined in his four-way primary.