David Venturella, a former executive at a private prison operator, will serve as the acting head of U.S. Immigration and Customs Enforcement, the Trump administration says, after the agency's current leader steps down at the end of the month.A spokesperson for the Department of Homeland Security said late Tuesday that Venturella would succeed Todd Lyons, who led the agency through much of the administration's tumultuous crackdown on immigration. ICE did not immediately respond to an email seeking additional information Wednesday.Venturella left the Geo Group in early 2023 and has been working at ICE leading the division that oversees detention contracts, members of Congress wrote in a public letter earlier this year.At the Geo Group, Venturella served in a number of posts, including executive vice president overseeing corporate development, according to a Securities and Exchange Commission filing. It said he also has worked for federal contractors, including one that specializes in security clearances and background checks.Geo has benefited from President Donald Trump's mass deportation push, garnering big contracts to open shuttered facilities. Among them was a $1 billion, 15-year deal for a detention center in New Jersey's largest city.Venturella will lead ICE at a time when the public mood has soured on Trump's immigration crackdown, which sent surges of federal immigration officers into American cities to round up immigrants. Those raids sent tensions soaring and prompted clashes between protesters and law enforcement, leading to the fatal shootings of two U.S. citizens in Minneapolis earlier this year.Trump returned to the White House on a promise of mass deportations, and ICE has been a central executor of that vision. Under Lyons' leadership, the agency used a massive infusion of cash to expand hiring and detention capabilities, and it ramped up arrests to meet demand from the Republican administration.Federal officials announced Lyons' departure last month. He led ICE amid Trump's efforts to reshape immigration.Venturella's appointment comes as DHS Secretary Markwayne Mullin settles into his role atop the Cabinet agency overseeing ICE. Mullin has promised to keep his department out of the headlines and has indicated a softer tone on immigration, although he is expected to align with the president's priorities on mass deportations.One contentious issue confronting DHS now is a plan for converting warehouses into immigrant detention. Conceived while Kristi Noem led the department, the effort has encountered multiple lawsuits and intense community blowback, including in Republican-led states.The $38.3 billion plan would increase detention capacity to 92,000 beds and mean acquiring eight large-scale facilities, capable of housing 7,000 to 10,000 detainees each, and 16 smaller regional processing centers.Those, and other sites, were supposed to be running by the end of November. But after Noem's departure, DHS paused the purchase of new warehouses as it scrutinizes all contracts signed during her tenure.Last month, a judge extended a pause on transforming a massive Maryland warehouse into a processing facility for immigrants, and there are signs that federal officials are scaling back the plans.