...Nixon Watergate whistle-blower. He's been blowing the same whistle ever since, and the act never seems to get old with a certain set...’s credibility, citing his criminal record and history of attacking President Trump and other Republicans."Mr. Dean has made a cottage industry out of accusing presidents of acting like Richard Nixon," Rep. Matt Gaetz, R-Fla., said.Dean, the ex-White House counsel in President Richard Nixon's administration, was convicted of obstruction of justice after striking a deal to cooperate with the Watergate investigation. He has spent decades critical of the GOP and wrote a book in 2004 accusing President George H.W. Bush of acts "worse than Watergate."