But, he said, he is endorsing Democrats Harris and Walz because "I will always be an American before I am a Republican."
Schwarzenegger went on to harshly criticize Donald Trump for rejecting the results of the 2020 presidential vote.
"(R)ejecting the results of an election is as un-American as it gets," he said. "To someone like me who talks to people all over the world and still knows America is the shining city on a hill, calling America ... a trash can for the world is so unpatriotic, it makes me furious.
He ended by saying the country needs to "close the door on this chapter of American history, and I know that former President Trump won't do that. He will divide, he will insult, he will find new ways to be more un-American than he already has been, and we, the people, will get nothing but more anger."
Democrats are leaning on celebrity star power. Will it matter?