Trump claimed, for example, that an unnamed president used the Insurrection Act “28 times during the course of a presidency,” but no president has invoked the Act on more occasions than Ulysses S. Grant’s six times, according to research by New York University’s Brennan Center for Justice. The act and the similar prior laws have been invoked on only 30 occasions in U.S. history. Trump also claims that “50 percent of the presidents” have invoked the act when only 17 of 45 presidents — less than 38 percent — have invoked the act or its precursor laws, according to the Brennan Cen