Donald Trump and his MAGA movement fit “the definition of fascism,” according to retired U.S. Army Majority General Randy Manner who warned that if the former president were to return to office — especially in light of the Supreme Court’s immunity ruling — “everything changes.” “If he was to be the commander in chief again, everything changes,” Manner said during an interview Monday night with CNN anchor Laura Coates. “The Supreme Court has given him immunity and the threshold for turning the National Guard into his personal police force is quite low.” Manner noted that as long as Trump remain…