By John Byrne Cassidy Hutchinson, a top former White House aide, was said to be an ardent loyalist of Donald Trump. Her bombshell testimony revealed Trump’s actions on the day of the Jan. 6 riot — including the President’s attempt to take his vehicle to the Capitol. Olivia Troye in a new ad by Republican Political Alliance for Integrity and Reform. Troye, a onetime counterterrorism advisor to Vice President Mike Pence, resigned over the administration’s handling of the COVID-19 pandemic and has been a vocal critic of Trump. Sarah Matthews and Air Force One. The former Trump White House aide te…