Gregory Bovino says he plans to retire from the U.S. Border Patrol in the coming weeks. He became a face of the Trump administration’s aggressive immigration enforcement tactics in large cities. Bovino joined the Border Patrol in 1996 and steadily rose through the ranks but wasn’t well-known outside the agency until last June, when he took command of a crackdown in Los Angeles. Bovino was a near-daily presence as Minnesota’s Twin Cities turned into a battleground between demonstrators and immigration authorities in January that led to the deaths of U.S. citizens Renee Good and Alex Pretti.