Arizona Republican Sen. Jeff Flake didn’t appreciate it when delegates at his party’s national convention chanted “lock her up” in reference to Hillary Clinton, he said on Friday. Flake added that he still was not supporting Donald Trump.

“On the Republican side, I had a bit of trouble with some of the chants, the ‘lock her up’ and what not,” Flake said on Chicago’s WGN radio station. “While it certainly appeals inside to that room, it doesn’t appeal much on the outside.”