Guilfoyle was born in San Francisco on March 9, 1969. Her father had a career in construction, and raised Guilfoyle and her brother as a single dad after her mom died of leukemia when she was 11.
Guilfoyle graduated Magna Cum Laude from UC Davis and received her law degree from the University of San Francisco. She interned for the San Francisco district attorney, and modeled for Macy's and Victoria's Secret while she was in law school.
After graduating law school, Guilfoyle worked as a prosecutor in San Francisco before spending four years in Los Angeles as a deputy district attorney. She then returned home to San Francisco where she served as assistant district attorney for four years.
In 2004, Guilfoyle moved to New York City to pursue a career on television. She hosted the program "Both Sides" on Court TV and served as a legal analyst for CNN.
next slide will load in 15 secondsSkip AdSkip AdGuilfoyle married Gavin Newsom in 2001. Two years later, he was elected mayor of San Francisco, and she became the city's first lady.
But as their bi-coastal marriage became a strain and Guilfoyle focused on her television career, the couple filed for divorce in 2005. Newsom, a Democrat, is now the lieutenant governor of California, and running for governor of the state.
In 2006, Guilfoyle married Eric Villency in Barbados and later gave birth to a son. Villency, a former model, is CEO of an interior design firm in New York who sometimes appears as a guest on TV news programs like the "Today Show."
Three years later, the couple separated and eventually divorced.
Guilfoyle joined Fox News in 2006 as a host of the weekend show "The Lineup".
next slide will load in 15 secondsSkip AdSkip AdAfter the show was canceled, Guilfoyle remained with the network as a legal analyst and became a co-host of "The Five" in 2011.
She has served in the same position ever since. Guilfoyle has also appeared on "The O'Reilly Factor", "Hannity", and "Fox and Friends". In 2017, she signed a long-term extension with Fox News.
In 2015, Guilfoyle wrote a semi-autobiographical book called "Making the Case: How to Be your Own Best Advocate" on her experience as a prosecutor and encouraging others to always stand up for themselves.
When former Fox News host Gretchen Carlson accused former Fox News chief Roger Ailes of sexual harassment, Guilfoyle disputed the charges and came to her boss's defense.
In December 2016, Trump was reportedly considering Guilfoyle to be his press secretary.
next slide will load in 15 secondsSkip AdSkip AdIn 2017, it was rumored that Guilfoyle was dating Anthony Scaramucci, the financier who served as Trump's White House communications director for 10 days.
After Sean Spicer resigned in July, Guilfoyle said she was in conversations with Trump to succeed Spicer in the role. She was ultimately not selected for the job.
And in May, rumors swirled that Guilfoyle was dating Trump Jr., who is nine years her junior. Page Six reported that the TV personality and president's first-born have been dating for weeks, and that they've been spotted out together in New York.