Milwaukee County Executive Chris Abele:
Abele might be one of Clarke's biggest rivals. The two have clashed over and over these last few years.
Clarke sued Abele over a budget veto in 2015, arguing a budget veto had, "a chilling effect on my free speech."
Abele called for Clarke's resignation after he announced he withdrew his name from consideration for a position with the DHS.
Abele also jabbed at Clarke for being a Cowboys fan, Tweeting, "The Cowboys are America's Team about as much as @SheriffClarke is Milwaukee's sheriff. #GoPackGo #AmericasRealTeam."
Milwaukee Mayor Tom Barrett:
The mayor and the sheriff have had their differences. Most notably, the two got into it in 2016, when the sheriff blasted Barrett for his remarks after violence erupted in the Sherman Park neighborhood. He blamed Barrett and County Executive Chris Abele for the spike in violence.
"These people want safer neighborhoods," Clarke told TODAY'S TMJ4. "You know how you get safer neighborhoods? Consistent police presence. I'm trying to bring that. I can't do that without the resources. As long as continue to get these budgets, none of this is going to change."
U.S. Rep. Gwen Moore:
The congresswoman criticized Clarke after a request into the Milwaukee County Jail following a number of deaths, including a newborn baby delivered by an inmate.
Clarke responded in a lengthy statement that included, "Moore has been called one of the most irrelevant members of the House of Representatives. We can see why. This is the same goof that planted her rear-end down in the street blocking traffic and getting arrested for trying to force employers into increasing the minimum wage. Apparently minimum wage is all she thinks black people are worth."
Clarke was not happy with the pop star after her Super Bowl half time show in 2016, which critics called "anti-police."
The Sheriff took issue with Nation of Islam's Louis Farrakhan's offer to provide Beyoncé with private security after some police groups threatened to boycott her performances.
State Rep. David Crowley:
Earlier this year, state Rep. David Crowley called for Clarke's removal from office and sent a letter to Gov. Scott Walker requesting it.
"I call on you to remove Sheriff Clarke for his willful neglect of duties, repeated inappropriate and incendiary comments, his promotions of violence, and use of intimidation against innocent civilians," Rep. Crowley said in his letter to Gov. Walker.
Supervisor Supreme Moore Omokunde:
The member of the Milwaukee County Board of Supervisors also called for Clarke's resignation after deaths at the Milwaukee County Jail.
Clarke responded, "Supervisor who? That sounds like some character in a science fiction comic book and he's upset that I helped Donald J. Trump get elected POTUS."
In January of this year, Clarke taunted Black with a meme and called him a "snowflake" after he accused Clarke of harassing him in Dallas.
Black said he was surprised to see Clarke in Cowboys gear instead of the green and gold after a playoff game.
This past January, when the Packers took on the Dallas Cowboys in the playoffs, Clarke went on NRA TV and told the host he was taking America's team over Wisconsin's.
"Big time Cowboys fan, how about them Cowboys? Cowboys are gonna win. They match up better, they're physically stronger than the Green Bay Packers. It'll be a good game -- Cowboys are gonna win," Clarke said on the show.
The local media:
Clarke has consistently criticized local media, claiming on Fox News that the media has become left-wing propaganda.
"They have abandoned their responsibility under the First Amendment to be neutral and to get to the facts, and they have become the mouthpiece, they have become the propaganda wing of leftist policy and leftist ideology," Sheriff Clarke said.