By Matthew Holloway |
Two Democratic candidates have withdrawn from the 2026 race for Arizona’s 6th Congressional District, leaving a single Democrat, JoAnna Mendoza, seeking to challenge Republican incumbent U.S. Rep. Juan Ciscomani.
According to Gila Valley Central, Samantha Severson officially withdrew from the race on Dec. 30, reducing the Democratic primary field to one active candidate in the southeastern Arizona district.
Severson’s departure followed the earlier withdrawal of Johnathan Buma, who announced that he was ending his campaign for the Democratic nomination in Arizona’s 6th Congressional District on Dec. 19.
In a statement to Gila Valley Central, Buma said his decision was not made “in retreat,” but after concluding that his efforts would be better directed outside electoral politics. He said he plans to focus on humanitarian and grassroots initiatives through his work with Project Lost & Found – Voices of Gratitude.
Buma, a former FBI agent, was arrested and charged in March 2025, according to federal court records cited by ABC News. Prosecutors allege Buma printed approximately 130 files from the FBI’s internal network, some of which were marked with warnings indicating the information was protected.
According to the Arizona Republic, Buma publicly criticized the FBI for political bias before leaving the agency and subsequently filed paperwork to run for Congress in May 2025.
The withdrawals by Severson and Buma follow several earlier Democratic exits from the race. Gila Valley Central previously reported that Aiden Swallow dropped out of the congressional contest to pursue a run for the Arizona Legislature. The outlet has also reported that Mo Goldman and Chris Donat withdrew earlier in the cycle.
With the departures of Severson and Buma, JoAnna Mendoza, who ran unsuccessfully for the Arizona Senate in 2020, now remains the only Democrat actively seeking the party’s nomination in Arizona’s 6th Congressional District.
Campaign finance filings indicate that Ciscomani has maintained a fundraising advantage as the race has developed. According to reporting by Arizona Public Media (AZPM), Ciscomani reported a larger cash-on-hand balance than Mendoza in recent Federal Election Commission filings, reflecting the advantages of incumbency.
AZPM noted that Mendoza outraised Ciscomani in the third quarter of 2025, with Mendoza’s campaign reporting roughly $669,000 raised from July through September compared with Ciscomani’s reported period haul of about $458,000, citing Federal Election Commission filings. However, Ciscomani maintained a larger overall campaign reserve due to prior fundraising and transfers from allied political committees.
Arizona’s 6th Congressional District includes Cochise, Graham, and Greenlee Counties, along with portions of eastern Pima County, and has drawn national attention due to its narrow margins. The Cook Political Report currently rates the district as a toss-up for the 2026 election.
In the 2024 general election, Ciscomani defeated Democrat Kirsten Engel by approximately 2.5 percentage points, winning by nearly 11,000 votes, roughly doubling his 2022 margin over Engel.
As of publication, no outlets have reported additional Democratic candidates entering the race following the withdrawals of Severson and Buma.
Matthew Holloway is a senior reporter for AZ Free News. Follow him on X for his latest stories, or email tips to Matthew@azfreenews.com.
