US President Donald Trump’s legal team will include former Harvard University law professor Alan Dershowitz and Ken Starr, the former independent counsel who led the Whitewater investigation into president Bill Clinton, according to a person familiar with the matter.

The team will also include Pam Bondi, the former Florida attorney general and a Trump ally.

Dershowitz confirmed his role in a series of tweets on Friday, saying he would “present oral arguments at the Senate trial to address the constitutional arguments against impeachment and removal.”

“He is participating in this impeachment trial to defend the integrity of the Constitution and to prevent the creation of a dangerous constitutional precedent,” the source said.

Dershowitz, a Harvard law professor and author, is a prominent defender of Israel and has consulted with Trump on his Israel policy. He has appeared on cable news as a defender of Trump during the recent impeachment crisis and is often touted by the president’s defenders as a liberal who is defending a conservative president on principle.

Dershowitz, meanwhile, has been embroiled in the Jeffrey Epstein scandal. A woman who went public with claims she was a teenage victim of Epstein’s sex trafficking ring has said Epstein trafficked her to several prominent men, including Dershowitz.