An executive order signed by the president would cancel collective bargaining for hundreds of thousands of workers, the largest federal employees union said. The union was preparing legal action.

President Trump's new executive order ends collective bargaining for wide swaths of federal employees, as part of his broader campaign to reshape the government's workforce. Unions vow to sue.

Donald Trump’s administration moved to invalidate contracts between a swath of US government agencies and the largest federal union representing their employees, marking a sweeping attack on collective bargaining rights as the president aims to lay off government workers.