Larry Klayman, the Washington attorney who won a landmark trial court ruling against government surveillance, has agreed to accept a public censure for violating attorney ethics rules.

Klayman signed the negotiated discipline with the Office of Bar Counsel in Washington on Monday. Klayman was accused of conflicts of interest in three cases in which he represented a client suing Judicial Watch, the conservative watchdog group he founded and later had a falling out with after leaving in 2003.