Milwaukee County Sheriff David Clarke Jr. tweeted Saturday that it was time for people to rise up and do something more than complain about a “corrupt” system.

“It’s incredible that our institutions of gov, WH, Congress, DOJ and big media are corrupt and all we do is bitch,” Clarke said.

It’s incredible that our institutions of gov, WH, Congress, DOJ, and big media are corrupt & all we do is bitch. Pitchforks and torches time pic.twitter.com/8G5G0daGVN — David A. Clarke, Jr. (@SheriffClarke) October 15, 2016

An outspoken critic of the Black Lives Matter movement, Clarke spoke out at the Republican National Convention in support of Trump in July.

In a controversial CNN interview in July, Clarke argued that Black Lives Matter were responsible for violence against police.

“My message has been clear from day one two years ago, this anti-cop sentiment from this hateful ideology called Black Lives Matter has fueled this rage against the American police officer,” Clarke said, according to reporting from the Milwaukee Journal Sentinel. “Yes I do. I’ve been watching this for two years. I predicted this. This anti-police rhetoric has turned out some hateful things in people.”