Miller originally called Pretti a “would-be assassin” — and his comment was amplified by other Trump-linked accounts. Miller, Trump’s deputy chief of staff, is widely seen in the administration as the mastermind of the president’s immigration policy, relentlessly pushing officials to meet goals that he designates on behalf of the president. And while the call can cover a host of topics, it largely focuses on Trump’s immigration push, a core part of the president’s second-term agenda. A White House official argued that Miller’s role is strictly focused on policy, not operational enforcement. One White House official laughed at the prospect of Miller being fired over the Minneapolis response.