President Donald Trump is canceling nearly $1 billion in spending approved by Congress. The White House announced the move on Friday, using a rare and contested power to axe funding for immigrant services and diversity-focused initiatives. The Office of Management and Budget described the funding cut as focused on “the most harmful government spending.” Most of the cuts affect services for immigrants, including nonprofits serving refugees and asylum seekers. Also affected are programs for migrant students and minority entrepreneurs. Sen. Susan Collins, the Republican chair of the Senate Appropriations Committee, said in a statement that the action came without warning or consultation.