David Sacks' tenure as the AI and crypto czar in the Trump administration was marked by a series of events that ultimately led to his downfall. The White House's shift in policy towards AI regulation can be attributed to three key factors. Firstly, the emergence of powerful AI models like Anthropic's Mythos has raised concerns about national security, as these models could be exploited by adversaries to attack America's public and private sectors. Secondly, other countries are implementing their own AI regulations, potentially conflicting with US interests. Lastly, Sacks' influence within the administration was diminished due to his attempts to undermine existing agencies and push for industry-friendly policies, which alienated political allies and Trump's base. Sacks' pro-innovation stance and attempts to centralize power over AI policy were seen as a threat to the administration's goals, leading to his removal from the position. The administration's focus on national security and geopolitical stability has now taken precedence over Sacks' pro-innovation agenda, with federal agencies gaining more authority in regulating AI models. The leak of Anthropic's Mythos and the involvement of key White House figures like Treasury Secretary Scott Bessent and Chief of Staff Susie Wiles further emphasized the urgency of addressing the national security implications of advanced AI models. The Commerce Department's recent announcement of pre-deployment testing for commercial frontier AI models is a significant step towards ensuring national security. However, the administration's concerns extend beyond AI to critical infrastructure, as evidenced by Iran's recent attacks on AWS data centers in the Middle East. Despite Sacks' influence, he was notably absent from a state banquet hosted by Trump for King Charles III, indicating his reduced status within the administration. The Trump administration's changing priorities and the increasing importance of national security and geopolitical considerations have ultimately led to David Sacks' departure from his position as AI and crypto czar.