The results of Arizona’s congressional primary elections are in, setting up contests in nine districts for November’s general election. Mail-in ballots, of which Arizona has a long history, played a role in the results, with more early ballots and more registered voters than in previous primary elections.

Here are the results of Arizona’s primary elections for the U.S. House of Representatives:

District 1

Winning roughly 59% of votes, Democratic incumbent Tom O’Halleran defeated Eva Putzova. In the November election, he will face Republican Tiffany Shedd, who defeated her opponent, Nolan Reidhead, 54% to 46%. Shedd describes herself as a “Constitutional conservative” who will “start by working with President Trump to secure the Southern border.”

District 2

Democratic incumbent Ann Kirkpatrick beat Peter Quilter with 77% of the vote and will face Republican Brandon Martin in November. Martin, an Army veteran, defeated his primary opponent, Noran Ruden, winning 44% of votes to Ruden’s 33%. Martin describes himself as pro-life and a defender of the Second Amendment. He advocates “a strong physical barrier” at the Arizona-Mexico border, among other security measures.

District 3

Democratic incumbent Raul Grijalva ran uncontested. His Republican opponent, Daniel Wood, also ran uncontested. Wood is a veteran of the U.S. Marine Corps and a former law enforcement officer and farm executive. Wood’s platform includes the continued construction of a border wall and repealing the Affordable Care Act.

District 4

Registered nurse Delina DiSanto won the Democratic nomination over Stuart Starky, 74% to 26%. DiSanto’s campaign slogan is “A Centered Mind for Divided Times,” and her website breaks down her views on several issues, including Native American rights and criminal justice reform. In November, she will face Republican incumbent Paul Gosar, who fended off his primary challenger, Anne Marie Ward, with 63% of the vote.

District 5

Democrat Joan Greene won the primary over Javier Ramos with 51% of votes. Greene, a small-business owner and native Arizonan who puts education at the top of her issues list, faces Republican incumbent Andy Biggs, who ran uncontested.

District 6

Dr. Hiral Tipirneni won the Democratic primary over Anita Malik, with 54% of votes to Malik’s 36%. Tipirneni advocates expanding Medicare, investing in public schools and protecting women’s reproductive rights. In November, her opponent will be Republican incumbent David Schweikert, who ran uncontested.

District 7

Democratic incumbent Ruben Gallego ran uncontested. He will face Republican Josh Barnett in November, who also ran uncontested. Barnett says he’s already working on bipartisan legislation for immigration reform and wants to “restore the Fourth Amendment to bring back checks and balances” to the judicial system.

District 8

Michael Muscato (54%) won the Democratic nomination over Bob Olsen (32%). Muscato, a former professional baseball player drafted by the New York Yankees, has a plan to “modernize” the immigration system, as well as a proposal to shift toward renewable energy sources. His Republican opponent in November will be incumbent Debbie Lesko, who ran uncontested.

District 9

Democratic incumbent Greg Stanton ran uncontested. In the Republican primary, Dave Giles beat Sam Huang, winning 54% of votes to Huang’s 24%. Giles, an economics engineer, business consultant and lifetime member of the National Rifle Association, says he supports Donald Trump’s border security plans and the reduction of tax rates for businesses.

The impacts of voting by mail in Arizona

The Maricopa County Recorder’s Office reports that 719,000 mail-in ballots were cast in the 2020 primary. That’s an increase over the 2018 primary, when almost 700,000 total votes were cast. Pima County, in the southern part of the state, recorded 202,000 early ballots Aug. 3, the day prior to the 2020 primary — a number the county’s chief deputy recorder said was about the same as the total number of votes across the county in the 2018 primary.

Arizona voters’ mail-in ballots will also likely have an impact on the Nov. 3 general election. According to the Citizens Clean Election Commission, nearly 80% of the state’s registered voters receive their ballots by mail.