Democrats tried to put me on trial in the Senate last week, denouncing what they called “the Dershowitz doctrine.” Rep. Adam Schiff claimed I advocated a “lawless” variation on Richard Nixon’s view that “when the president does it, that means that it is not illegal.” Senate Minority Leader Chuck Schumer said that under my “doctrine” Nixon didn’t commit any impeachable offense—never mind his numerous crimes and my explicit statement that I supported Nixon’s impeachment. Pundits went further: Joe Lockhart, former press secretary to President Clinton, said: “This is what you hear from Stalin . . . from Hitler, from all the...