2018 Arizona primary election: LIVE RESULTS

Arizona primary election results updated hourly by county, candidate and party.

ByABC News
June 12, 2018, 5:41 PM
A voter enters a polling location in Miami Beach, Florida, Aug. 28, 2018.
A voter enters a polling location in Miami Beach, Florida, Aug. 28, 2018.
Bloomberg via Getty Images

— -- Arizona is at the center of the battle for the U.S. Senate in 2018.

The retirement of Sen. Jeff Flake has made the state a top pickup opportunity for Democrats this cycle, but a field of three Republicans that includes Rep. Martha McSally, former Maricopa County Sheriff Joe Arpaio and former state Sen. Kelli Ward is hoping to keep the seat red in November. Democrats have coalesced around Rep. Kyrsten Sinema as their nominee.

PHOTO: Rep. Martha McSally, R-Ariz., speaks during a news conference at a campaign event for her Senate primary race, Aug. 15, 2018, in Phoenix.
Rep. Martha McSally, R-Ariz., speaks during a news conference at a campaign event for her Senate primary race, Aug. 15, 2018, in Phoenix. McSally, Kelli Ward and former Maricopa County Sheriff Joe Arpaio are vying for the Republican nomination.
Ross D. Franklin/AP

Other races to watch include the Democratic primary to take on GOP Gov. Doug Ducey, and both parties' primaries to fill McSally's U.S. House seat, which sits on the U.S.-Mexico border and was once held by Rep. Gabby Giffords.

The polls in Arizona close at 10 p.m. Eastern Time.

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