Mary is an American psychologist and the author of three books: the international bestseller Too Much and Never Enough: How My Family Created the World’s Most Dangerous Man (which sold one million copies on its first day of publication) and the New York Times bestsellers The Reckoning and the memoir Who Could Ever Love You. She holds a PhD in clinical psychology and has taught graduate courses in developmental psychology, psychopathology, and trauma.

In 2017 she provided over 40,000 pages of documents to the New York Times, becoming a source for its 2018 Pulitzer Prize–winning investigation. Since her first book’s publication, Mary has been a frequent guest on cable news shows, podcasts, and YouTube channels, using her appearances to analyze the psychopathologies of her uncle, Donald, and the state of American democracy.

She writes The Good in Us, a best-selling newsletter on Substack, and is the founder of Mary Trump Media. On these platforms, Mary has shown herself to be a passionate defender of democracy, deeply invested in wresting control of our country from its current corrupt, anti-American leaders.