Kimberly Guilfoyle

Kimberly Ann Guilfoyle ( GHIL-foyl; born March 9, 1969) is an American diplomat, media personality, and former prosecutor who has served as the United States ambassador to Greece since 2025. She served as an advisor and led the fundraising division of the Trump 2020 presidential campaign. Guilfoyle studied at University of California, Davis, and the University of San Francisco School of Law, where she earned a J . degree. She became a prosecuting attorney in San Francisco and Los Angeles, California. She was an assistant district attorney in San Francisco from 2000 to 2004. From 2001 to 2006, she was married to Democratic politician Gavin Newsom, and was first lady of San Francisco during Newsom's first two years as mayor of that city. She was the fiancée of Donald Trump Jr. from 2021 until they separated late in 2024. Guilfoyle worked at Fox News from 2006 to 2018, and co-hosted The Five on the network. She later joined America First Policies, a pro-Trump super PAC, to campaign for Republicans in the 2018 midterm elections. On December 10, 2024, then-President-elect Trump nominated her as the U . ambassador to Greece and was confirmed by the Senate on September 18, 2025.