The White House on Thursday withdrew its nominee to head US Immigration and Customs Enforcement, the agency tasked with carrying out President Donald Trump’s immigration crackdown.Lance Schroyer, a former US Marine and Oklahoma state trooper, was named by Trump earlier this year to be the next ICE director, a post subject to Senate confirmation.In a brief statement on its website, the White House said Schroyer’s nomination had been withdrawn.No reason was given but the nomination had been...