Butler, who is based in Washington and maintains close ties with Los Angeles, had a stint as director for public policy and campaigns at Airbnb and spent nearly two decades as a powerful and well-respected labor leader with the Service Employees International Union. As president of SEIU California, she worked closely with then-Gov. Jerry Brown on policies like hiking the minimum wage to $15 per hour and raising taxes for wealthy Californians. She also served on the University of California Board of Regents, to which she was appointed by Brown in 2018 before stepping down in 2021.
Butler is the first openly LGBTQ person to represent California in the Senate.