The Office of Congressional Conduct sent an investigative letter last year to look into Rep. Tony Gonzales’ (R-TX) alleged affair with a staffer who died by setting herself on fire.
The letter, obtained by the San Antonio Express-News, showed investigators sought text messages, emails, and other communications about the relationship, asking Adrian Aviles, the widower of former congressional staffer Regina Santos-Aviles, to provide any information he had on the affair.
The office requested “emails, text messages, instant messages, and voicemails” from January 2023 to September 2025, and it said investigators were seeking to interview people involved.
The letter, sent on Nov. 25, 2025, reportedly shows the investigation had begun earlier than that month, as it needed to clear other thresholds before contacting Aviles.
Last year, authorities said Santos-Aviles poured gasoline on herself outside her home and set herself on fire, and she died the next day at a hospital in San Antonio. Police ruled the death a suicide.
Aviles told the San Antonio Express-News earlier this week that Gonzales engaged in an affair with his wife, who was the congressman’s regional district director. The outlet had previously published a text message, shared by a former Gonzales staffer, in which Santos-Aviles acknowledged the affair.
Gonzales claimed he is being blackmailed by the husband, posting a note on X from the lawyer of Aviles requesting a $300,000 settlement. Aviles responded promptly to the post, denying the allegation.
HUSBAND OF TONY GONZALES STAFFER WHO DIED BY SUICIDE CALLS ON REPUBLICAN TO TAKE ACCOUNTABILITY
The Texas Republican has denied the affair. The three-term congressman is facing a heated primary challenge from Second Amendment activist Brandon Herrera. Gonzales narrowly defeated Herrera in 2024 for the Republican nomination, with the 2026 primary slated for March 3.
The Washington Examiner reached out to Gonzales’s office and the Office of Congressional Conduct for comment.
Rachel Schilke contributed to this article.