Meanwhile, police chiefs from cities across the U.S. are resisting a move by the Trump administration to enlist local police officers to help deport undocumented immigrants. The White House plan would also withhold federal funds from sanctuary cities that refuse to cooperate with federal immigration authorities. In a joint letter sent to Congress Tuesday, 61 sheriffs and police chiefs wrote, “We can best serve our communities by leaving the enforcement of immigration laws to the federal government. Threatening the removal of valuable grant funding from jurisdictions that choose not to spend limited resources enforcing federal immigration law is extremely problematic.”