A former senator is facing allegations of an affair with her bodyguard, as revealed in a legal complaint filed by the bodyguard’s wife, who is also the mother of his three children.

Kyrsten Sinema, aged 49, who served as Arizona’s representative in the U.S. Senate from 2019 to 2025, initially as a Democrat and later as an independent, is accused of “intentional and malicious interference” in the marriage of Matthew and Heather Ammel.

Heather Ammel claims that Sinema began a romantic relationship with her husband, Matthew, a special forces veteran, soon after he joined her security team in 2022.

The lawsuit states that Sinema and Ammel frequently traveled together for work, both domestically and internationally, during which the senator allegedly invited the father of three to her hotel room.

According to the suit, the bisexual senator requested that Ammel bring MDMA, commonly known as ecstasy, on one of these trips in 2023, intending to “guide him through a psychedelic experience.”

The pair also reportedly exchanged messages about engaging in sexual activities, with Sinema purportedly dismissing the idea of having sex missionary style with the lights on as “Boring!”

Heather Ammel is suing Sinema for damages of $25,000 under a unique North Carolina law that allows for a plaintiff to sue for alienation of affection via ‘wrongful and malicious conduct’, for example, an affair. 

Their travels included trips to a number of concerts, including U2 at the Sphere in Las Vegas, Green Day in Washington, and Taylor Swift in Miami. Ammel also accompanied the Senator on a foreign trip to Saudi Arabia. 

Krysten Sinema alongside Matthew Ammel speaking at an event in October 22

Kyrsten Sinema leaves the ‘AI Insight Forum’ outside the Kennedy Caucus Room in the Russell Senate Office Building on Capitol Hill on September 13, 2023 in Washington, DC

Sinema asked Ammel to remove his wedding ring ‘so it wouldn’t look like she was putting her hands on a married man when they were out at concerts,’ the lawsuit claims.

During former President Joe Biden’s 2024 State of the Union address, Sinema told Ammel that she was skipping it as she didn’t need to listen to ‘some old man.’

When Ammel massaged Sinema about wanting to start a ‘f*** the troops’ chant at a Pennsylvania baseball game, Sinema responded she would ‘f*** the hot ones.’

The suit also notes that Sinema purchased a Theragun electric massager for Ammel and messaged for him to bring it over to her apartment so she could ‘work on his back.’

Ammel in a family photo

Sinema even sent pictures of herself wrapped in a towel to Ammel.

The affair allegedly culminated in the breakdown of the marriage in late 2024, when Ammel and her husband separated.

The complaint says Ammel was left emotionally devastated, financially strained, and forced to pursue divorce proceedings as a result of Sinema’s actions.

The suit notes that Ammel worked for Sinema between 2022 and 2025. 

Ammel suffers from PTSD as well as a traumatic brain injury and took psychedelic drugs to help combat the effects. 

Sinema has been active in pushing for psychedelics, including MDMA as well as Ibogaine, to be accepted as valid therapies for PTSD, both in her time as a senator and lobbyist after her government service.

In an interview with the Phoenix New Times last year, Sinema named Ammel as an inspiration for her work, stating that after Ammel returned from a trip to Mexico, where he partook in ibogaine treatment, which is illegal in the US, she ‘saw the difference it was making in his life, his thinking and his behavior.’

Kyrsten Sinema applauds during U.S. President Joe Biden’s State of the Union address during a joint meeting of Congress in the House Chamber of the U.S. Capitol on February 7, 2023 in Washington, DC

Sens. Kyrsten Sinema (D-AZ) (L) and Mitt Romney (R-UT) arrive for a bipartisan meeting on infrastructure after original talks fell through with the White House on June 8, 2021

Kyrsten Sinema talks to Sen. Ben Ray Lujan in a hallway prior to a weekly Democratic policy luncheon at the US Capitol on May 31, 2023

Sinema also advocated for the FDA, under the Biden administration in 2024, to consider the scientific evidence that she believed showed that MDMA could help treat veterans’ behavioral and mental issues, including PTSD. 

Legistorm, a database of congressional salaries, lists that Ammel was a Defense and National Security Fellow in Sinema’s Senate office, and was paid over $90,000 for six months of work between June of 2024 and January of 2025.

Prior to his official Congressional role, Ammel was paid from Sinema’s campaign accounts and her Getting Stuff Done leadership PAC, per Federal Election Commission Data.

The amount the Ammel was getting paid appears to have sharply increased after Sinema left office.

The Daily Mail has contacted Sinema for comment.