From 1996 to 1997, Berner worked as a
law clerk for Judge
Betty Binns Fletcher of the
United States Court of Appeals for the Ninth Circuit, and from 1997 to 1998, she worked as a
law clerk for Chief Judge
Thelton Henderson of the
United States District Court for the Northern District of California. She was a visiting attorney at
Yigal Arnon & Co. in Israel from 1999 until 2000, and was a litigation associate at
Jenner & Block from 2000 through 2004. Berner joined the SEIU's legal department as an
in-house counsel in 2006 and was named
General Counsel in 2017. Her work with the SEIU has included legal efforts to support the
Affordable Care Act, to oppose the
Defense of Marriage Act, and to oppose an effort to end the
Deferred Action for Childhood Arrivals (DACA) program during the Trump administration. She was the lead attorney on the
amicus curiae brief filed on behalf of the SEIU in
California v. Texas. She was also involved with the
Fight for $15 movement. In 2019, liberal group
Demand Justice included Berner on their list of suggested Supreme Court nominees for any future Democratic president. In 2023, Berner was named an
adjunct professor of law at
Vanderbilt Law School. Berner is an elected member of the
American Law Institute. She is a fellow of the
American Bar Foundation Federal judicial service On November 15, 2023, President
Joe Biden announced his intent to nominate Berner to serve as a
United States circuit judge for the
United States Court of Appeals for the Fourth Circuit. On December 13, 2023, a hearing on her nomination was held before the
Senate Judiciary Committee. During her confirmation hearing, she answered questions, including about her work as general counsel for the
SEIU. On January 3, 2024, her nomination was returned to the president under
Rule XXXI, Paragraph 6 of the
United States Senate and she was renominated on January 8, 2024. On January 18, 2024, her nomination was reported out of committee by an 11–10
party-line vote. On March 14, 2024, the Senate invoked
cloture on her nomination by a 48–40 vote, with Senator
Joe Manchin voting against the motion. On March 19, 2024, her nomination was confirmed by a 50–47 vote, with Senator Manchin voting against confirmation. She received her judicial commission the same day. Berner is the first openly
LGBTQ judge to serve on that court. ==Personal life==