Speaking at the end of the fourth and final day of the annual event in Maryland, Trump bragged about the narrow election victory in last year’s election, which he called “too big to rig” and said his win over Vice President Kamala Harris had “achieved the great liberation of America.”

Trump-appointed officials at some government agencies — including the F.B.I., the State Department and the office coordinating America’s intelligence agencies — told their employees not to respond after Elon Musk ordered workers across the federal government to summarize in an email their accomplishments for the week or be removed from their positions.