King was arrested on February 18, 2022, at the convoy protests in Ottawa and was convicted on five charges including mischief and disobeying a court order.

[16] King was part of a right-wing counter protest to an anti-racist demonstration in Red Deer in 2020 where he was noted for saying: "That’s patriots kicking antifa out of their towns!

[17][18] In August 2021, King and Chris Sky visited Moose Jaw, Saskatchewan, and spoke as part of a No-Vaxx Pass tour, in which they encouraged Canadians to defy the rules about vaccine passports.

[20] This led to the Justice Centre for Constitutional Freedoms stating that: "It is unclear whether Mr. King fully understands the legal process he is involved in.

"[2] In October 2021, King broadcast a video, falsely claiming that the Canadian military had set up a base at Black Lake Denesuline First Nation and were forcing COVID-19 vaccinations on women and children.

[10] The video went viral, resulting in pressure upon the Athabasca Health Authority and the Federation of Sovereign Indigenous Nations to put out statements, correcting the misinformation.

This prompted the judge to address the irony of the situation: "an individual whose raison d'etre is to protest vehemently against public health measures designed to reduce the spread of COVID, would now suggest that the delay or the potential for being infected at a detention centre could impact the court's decision.

[36] King was granted bail on July 18, 2022, and forbidden from using social media, contacting convoy leaders, or organizing convoy-related protests.

[37] A request to relocate the trial away from Ottawa was initially rejected by Superior Court justice Kevin Phillip in April 2023.

[8] In August 2023, King ordered back into custody for alleged bail violations for a week before being released with stricter restrictions.

[9][27] He has shared videos online promoting the white genocide conspiracy theory,[28][42] including saying on social media, "There’s an endgame: It’s called depopulation of the Caucasian race.