Well, he said he was one.
Other than that, we have his liberal past, and a bunch of talk.
And roughly half of that talk consists of slip-ups where he reveals a liberal stance and then has to backpedal the next day after his advisors get hold of him.
Can you name another Dem who wants to close the border, deport foreign invaders, reduce taxes, scuttle Obama’s disastrous trade deals, rebuild the military, and assure—FINALLY—that vets get the care and treatment they deserve?