 It was Nixon's first courtroom appearance since his resignation in 1974.Nixon also contributed money to Felt's defense fund, since Felt's legal expenses were running over $600,000 by then.Also testifying were former Attorneys General Mitchell, Kleindienst, Herbert Brownell Jr., Nicholas Katzenbach, and Ramsey Clark, all of whom said warrantless searches in national security matters were commonplace and understood not to be illegal.