Ted Cruz defended North Carolina's controversial bathroom law on Friday, and warned in a tweet that if Donald Trump becomes the next president, he "won't take on the PC police."

"Should a grown man, pretending to be a woman, be allowed to use the women's restroom?" reads the text over black and white images of a bathroom and a girl holding her mother's hand. "The same restroom used by your daughter? Your wife?"

The video then shows Trump making his case against the law, implemented March 26, which requires everyone to use the restroom facility that matches their birth gender.

"People go, they use the bathroom they feel is appropriate," the Republican presidential front-runner said.

"It's not appropriate. It's not safe," the video concludes. "It's PC nonsense that's destroying America. Donald Trump won't take on the PC police. He's one of them."

Numerous LGBT rights groups have condemned the law, white Trump became one of the few Republicans to say he opposes it during a town hall event Thursday morning on NBC.