The White House has withdrawn President Donald Trump's nomination of Lance Schroyer to become the director of Immigration and Customs Enforcement (ICE), as announced in a notice published on Thursday. The notice did not explain why the nomination was pulled. Schroyer, a former Oklahoma state trooper, had previously worked as a senior adviser to Department of Homeland Security (DHS) Secretary Markwayne Mullin, who once represented Oklahoma in the U.S. Senate. Mullin had chosen Schroyer to replace Todd Lyons, who left the position in April. Schroyer has spent decades in local law enforcement in Oklahoma but lacks formal experience working with ICE. Trump had nominated him in June, praising his experience in removing "Illegal Aliens" from streets and expressing admiration for ICE personnel. However, critics raised concerns about his qualifications, pointing out that his federal experience was limited to being deputized to conduct immigration arrests. Schroyer's nomination faced delays in the Senate, partly due to Republican Senator Rand Paul, who leads the Homeland Security and Governmental Affairs Committee. Paul had asked for information about investigations into incidents involving ICE agents in Minnesota. As a result, Schroyer's nomination did not advance beyond the committee stage. ICE has not had a Senate-confirmed director since 2017. Currently, David Venturella serves as the acting director, having taken over earlier this year after Lyons left. Some within DHS reportedly opposed Schroyer's nomination, with an unnamed official telling Politico in August that they preferred to continue operations without interference. Schroyer served in the U.S. Marine Corps from 1992 to 1996 and previously worked as part of Mullin’s security detail during Mullin’s time in the Senate. The two became close after Mullin invited Schroyer for dinner. According to the Wall Street Journal, Schroyer retired as a major in the Oklahoma state police and had no formal federal government experience beyond being deputized for immigration arrests. The White House and ICE have not provided further details about the withdrawal of Schroyer's nomination. However, an ICE spokesperson mentioned that a statement would be released soon.