Guilfoyle arrived at Jefferson House in November 2025 and has been visible at high‑profile events — from Paris Fashion Week and the Vienna State Opera Ball to running in an Olympic torch relay near the Acropolis. She’s been cultivating business ties in shipping and energy and befriending local figures including Panagiotis and Giorgos Angelopoulos.
Her nomination for the post came on December 10, 2024, shortly after Donald Trump won a second term; she and Donald Trump Jr. dated from 2018 through 2024 and split as her diplomatic posting was announced. The leaked spending details have prompted public scrutiny and debate over the use of government funds.