She admitted that she had voted for Trump in November.
Caitlyn Jenner has some harsh words for Republicans who want to repeal Title IX, the federal law that prohibits sex discrimination in education.
Read: Was Giselle Behind Tom Brady's White House Absence?
She sat down with Diane Sawyer for ABC’s 20/20 for an interview that airs in full on Friday.
Sawyer asked Jenner: “Are you still a Trump Republican?”
“Yes, I did vote for Trump,” she said. “Here's my deal breaker with the Republican Party — You mess with my community, I’m coming for you.”
Sawyer also asked: “You haven't talked to Trump? Right? Secretly? Privately?”
“When I was at the inauguration I said hi at a cocktail party," she said. "He wanted me to come play golf with him. At that time I thought that was a good idea but since Title IX, it's not a good idea. I won't be playing golf with him.”
Read: Ousted TV Host Billy Bush Sings About Returning to the Job in Strange Instagram Video
Jenner’s new book, The Secrets of My Life, hits bookstores on April 25.
Watch: President Trump Felt 'Betrayed' by Amanda Knox After She Supported Hillary Clinton