serious challenges we face". Schwarzenegger serves as chairman of the institute. Global warming At a 2015 security conference, Schwarzenegger called climate change the issue of our time. He also urged politicians to stop treating climate change as a political issue. 2016 presidential election For the 2016 Republican Party presidential primaries, Schwarzenegger endorsed fellow Republican John Kasich. However, he announced in October that he would not vote for the Republican presidential candidate Donald Trump in that year's United States presidential election, with this being the first time he did not vote for the Republican candidate since becoming a citizen in 1983. Post-2016 In recent years, Schwarzenegger has been advocating for eating less meat, and he is an executive producer alongside James Cameron et al. behind the documentary The Game Changers, that documents the explosive rise of plant-based eating in professional sports, in which he is also featured. In 2017, Schwarzenegger condemned white supremacists who were seen carrying Nazi and Confederate flags by calling their heroes "losers". In 2019, while at the "Arnold Classic Africa" sports competition as an official, Schwarzenegger was attacked by an assailant in a flying kick. The assailant was arrested. Following the January 6 United States Capitol attack by supporters of President Donald Trump, Schwarzenegger posted a video address on social media in which he likened the insurrection to Nazi Germany's Kristallnacht, which he described as "a night of rampage against the Jews carried out [by] the Nazi equivalent of the Proud Boys". He spoke of his father's alcoholism, domestic violence, and abuse, and how it was typical of other former Nazis and collaborators in the post-war era; and described Trump as "a failed leader. He will go down in history as the worst president ever." In late March 2021, Schwarzenegger was interviewed by Politico about the upcoming recall election in California in which he said that "it's pretty much the same atmosphere today as it was then", and when he was asked about Newsom's claim of this being a "Republican recall" he responded that "this recall effort is sparked by ordinary folks", and that this was not a power grab by Republicans. Schwarzenegger has spoken out about COVID-19, urging Americans to wear masks and practice social distancing. In August 2021, he said: "There is a virus here. It kills people and the only way we prevent it is: get vaccinated, wear masks, do social distancing, washing your