The GOPe never accepts the will of the people in the nomination process. How many times have the GOPe voted with Dems when the establishment candidate loses the nomination? Too many to count. The GOPe exists to maintain the statist status quo. They are domestic enemies of the United States of America.
If he voted for the dem it was secretly. He claims to have voted for a write in which is effectively not voting at all and mathematically speaking is exactly 50% as bad as voting for the democrat.