A shattered marriage. A former Senator. And a trail of startling text messages are at the heart of a deeply personal and increasingly public legal battle. Newly revealed communications paint a picture of an intimate relationship between Kyrsten Sinema and her former Senate bodyguard, Matthew Ammel, while he was still married.
The details emerged through court filings in an alienation-of-affection lawsuit brought by Heather Ammel, Matthew’s estranged wife. She discovered the messages on her husband’s phone, igniting a confrontation with the former Senator and ultimately leading to a legal pursuit for damages exceeding $25,000.
The messages themselves are strikingly candid. One exchange reveals a request from Sinema for Ammel to bring MDMA on a work trip, allegedly so she could “guide him through a psychedelic experience.” Another message from Sinema simply read, “I miss you. Putting my hand on your heart.”
Heather Ammel alleges a deliberate and calculated pursuit by Sinema, claiming the former Senator showered her husband with gifts and sent a barrage of romantic and “lascivious” messages via Signal. She describes a once-loving marriage irrevocably damaged by the unfolding affair.
The timeline, as presented in court documents, suggests the relationship began to blossom in May 2024 while Ammel was assigned to Sinema’s security detail in Sonoma, California. It allegedly continued across multiple states – New York, Washington D.C., Colorado, and Arizona – becoming physically intimate over the following months.
A particularly jarring detail revealed in the filings is a photograph allegedly sent by Sinema, depicting her wrapped in a towel, revealing “bare upper back with cupping bruises.” This image, along with the other messages, forms the core of Heather Ammel’s claim of intentional interference in her marriage.
The lawsuit alleges that Sinema even openly dismissed the importance of attending President Biden’s State of the Union address, texting Ammel that she “didn’t need to listen to some old man talk about the legislation that she wrote.” This detail hints at a level of disregard and prioritization that fueled the marital breakdown.
Sinema, in a sworn declaration, admits the relationship “became romantic and intimate” but denies sending the provocative photograph or requesting the drug. Her legal team argues the court lacks jurisdiction and that any communications occurred after the marriage had already fractured.
However, Heather Ammel’s attorneys are fiercely contesting the motion to dismiss, urging the judge to allow the case to proceed. They maintain that Sinema’s actions were a direct and intentional cause of the Ammels’ divorce, finalized after a separation in November 2024.
The case remains unresolved in U.S. District Court in North Carolina, with no trial date currently set. As the judge considers Sinema’s motion, the details of this intensely personal dispute continue to unfold, raising questions about power, betrayal, and the consequences of hidden relationships.
