Republican state lawmakers, conservative groups and others have voiced concerns about illegal voting and how it could sway the election in the key battleground state.Start the day smarter. Get all the news you need in your inbox each morning.

Ballots for the vast majority of Arizona voters will be two pages long. Nine of the state's 15 counties are moving away from a single-sheet ballot.

Arizona voters will decide on abortion access and a host of other measures in 2024. Democrats could win control of a chamber of the Legislature.

Voters will decide who will be elected to two important regulatory boards: Central Arizona Water Conservation District and Corporation Commission.

Much of the ground game has been outsourced to Turning Point Action, which has given up on persuading swing voters and is betting it all on turning out MAGA diehards.

They will decide ballot measures on abortion rights, immigration, primary voting and, in Maricopa County, a transportation tax. Voters will get a chance to decide which judges will be retained in the state's most populous counties and elected in the state's smaller counties.

Voters who are not a part of either party make up about one-third of voters in Arizona, a key swing state for the presidential election.

Arizona election officials are warning there could be delays at polling places and vote-counting machines could jam as voters fill out a multipage ballot, an unusual occurrence in the presidential battleground state.