MIAMI (AP) – Republican front-runner Donald Trump is keeping up his attack of rival Ted Cruz, calling his conduct at the Republican debate “strident” and labeling his remarks about “New York values” in the GOP debate “disgraceful.”

Appearing on MSNBC’s Morning Joe Friday, Trump said the Texas senator “hurt himself” at Thursday night’s debate when he said that “everyone understands that the values in New York City are socially liberal or pro-abortion or pro- gay-marriage, focus around money and the media.”

Trump countered with an emotional recounting of his hometown’s response to the Sept. 11 attacks.

Trump says “y’know, he’s a good debater, but he’s very strident, and a lot of people are not going to like that.”

Protesters briefly interrupted Trump’s interview in Des Moines, Iowa, chanting, “Donald Trump. Stop the Hate!”