Hillary Clinton on Wednesday briefly reacted to Donald Trump’s remarks suggesting “Second Amendment people” could take her out to prevent her from appointing Supreme Court judges as president, characterizing the comment as a “casual” incitement to violence.

Clinton mentioned at an Iowa rally that Trump had made “casual comments” on Tuesday that were dangerous, but did not go into specifics.

“Yesterday we witnessed the latest in a long line of casual comments by Donald Trump that crossed the line,” she said. “His casual cruelty to a Gold Star family, his casual suggestion that more countries should have nuclear weapons, and now his casual inciting of violence. Every single one of these incidents shows us that Donald Trump simply does not have the temperament to be president and commander-in-chief of the United States.”

Clinton went on to thank Republicans who have stood up to Trump and demanded he apologize or take back his remarks.

“I am humbled and moved by the Republicans who are willing to stand up and say that Donald Trump doesn’t represent their values,” she said.

“As a young man said to me in Florida the other day, ‘Friends don’t let friends vote for Trump,'” she added.