Dershowitz didn't immediately return an email seeking comment on Boies' suit.
The clash has a tangled backstory. Boies represented Giuffre in a lawsuit she filed in April against Dershowitz, claiming he defamed her by calling her a liar in public on numerous occasions. Dershowitz on Thursday countersued Giuffre, saying she's defaming him.
In October, a judge ousted Boies and his firm from Giuffre's case after ruling that lawyers at the firm are likely to be witnesses in the suit against Dershowitz.
Dershowitz was part of Epstein's legal team in negotiating a 2008 plea deal over criminal charges in Florida. Epstein had to serve just 13 months in a Palm Beach jail and was allowed almost daily work release.
Epstein hanged himself in his jail cell in August while awaiting trial on sex trafficking charges.
Former VA nominee Ronny Jackson eyes run for Congress
WASHINGTON -- Navy Rear Adm. Ronny Jackson is considering a run for Congress in Texas, two sources familiar with his plans said Friday.
Jackson was the chief White House physician in 2018, when President Donald Trump nominated him to be Veterans Affairs secretary. But Jackson withdrew his nomination from consideration amid allegations that he abused alcohol and mishandled prescription drugs, although he said at the time the charges were "completely false and fabricated."
A Texas native, Jackson is eyeing a run as a Republican in the 13th District, which opened after longtime GOP incumbent Mac Thornberry announced his retirement. Trump won the district by 63 points in 2016 and Inside Elections with Nathan L. Gonzales rates the race "solid Republican."
Jackson was born in Levelland, Texas, which is in the neighboring 19th District.
Jackson is well-liked by Trump and is still employed at the White House, although he is no longer the chief physician. He also served as a physician for Presidents Barack Obama and George W. Bush. Candidate filing begins Saturday and ends Dec. 9.
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