Protests continued in Minneapolis and other US cities on Sunday after federal immigration agents fatally shot 37-year-old nurse Alex Pretti on Saturday. Minnesota Governor Tim Walz described America as being at an "inflection point" and urged President Donald Trump to remove federal immigration agents from Minneapolis. Trump called for the governor to "turn over all Criminal Illegal Aliens" held in state prisons for deportation. Minneapolis Police Chief Brian O'Hara told the BBC that state officers were blocked by federal agents from accessing the shooting scene, despite holding a search warrant. He said that cooperation between Minnesota law enforcement and federal agents has been ongoing for years but was now hindered. Border Patrol commander Greg Bovino accused O'Hara and Minneapolis Mayor Jacob Frey of trying to disrupt federal operations. In an interview with the Wall Street Journal, Trump said, "At some point we will leave. We've done, they've done a phenomenal job," signaling a possible future withdrawal of ICE agents from Minneapolis without a time frame. He added the administration is "reviewing everything" about Pretti's death and that "it will come out with a determination." The shooting has sparked nationwide debate. Homeland Security Secretary Kristi Noem said Pretti was shot because he was "brandishing" a gun. Local officials and Pretti's family dispute this, saying he was legally carrying a gun and did not brandish it; he was shot after the gun was removed. The Trump administration called Pretti a "domestic terrorist," a claim his family rejected as "reprehensible and disgusting." Oklahoma Governor Kevin Stitt and Louisiana Senator Bill Cassidy, both Republicans, expressed concerns about federal tactics and ICE's credibility. Democrats threaten to block Homeland Security funding unless changes are made, risking a government shutdown. On Sunday evening, Trump demanded on social media that all Democratic governors and mayors "formally cooperate" with his administration to "enforce our Nation's Laws." He blamed "sanctuary cities" for "all these problems." Hundreds protested in freezing weather in Minneapolis, facing tear gas and stun grenades from armed federal agents. Demonstrations also appeared in New York, Chicago, Los Angeles, and San Francisco with signs demanding "Justice for Alex" and "abolish ICE." More than 60 Minnesota businesses, including 3M and Target, signed an open letter calling for "an immediate de-escalation of tensions" and cooperation between local and federal officials. Videos of Pretti’s shooting show a struggle with Border Patrol agents. DHS said agents fired in self-defense after Pretti resisted disarmament. Witnesses, local officials, and Pretti’s family say he held a phone, not a gun. Pretti was a lawful gun owner without a criminal record besides minor traffic tickets. The National Rifle Association has called for a "full investigation" and warned against demonizing law-abiding citizens. Federal agents were reportedly targeting Jose Huerta Chuma, accused of crimes. Minnesota’s Department of Corrections said he had no relevant record in their system, only old minor traffic offenses. Tensions have risen since December when ICE launched operations in Minneapolis following welfare fraud convictions involving Somali immigrants. Minnesota hosts the largest Somali community in the US. The latest shooting follows the killing of Renee Good, a Minneapolis resident shot by an ICE agent earlier this month. Her family's lawyer called for immediate ICE removal from Minnesota. ICE agents have power to stop, detain, and arrest people suspected of being in the US illegally, fueling ongoing protests and controversy in Minneapolis and beyond.