Kenworthy, who will compete for Team GB in the freeski half-pipe at the Milano-Cortina Games, appeared to urinate 'Fuck ICE' in the snow.
His protest comes amidst growing backlash against ICE's alleged brutality against US citizens and its involvement in policing at the Winter Olympics.
Kenworthy encouraged followers to send letters to US senators, urging them to rein in ICE and Border Patrol's power and funding.
The International Olympic Committee (IOC) stated it does not regulate personal social media posts, and Team GB is not concerned as it is a personal opinion unrelated to the Games.
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