The top official at the U.S. Postal Service said Thursday that the agency has stopped work on developing a controversial computer system that was central to President Donald Trump's effort to limit mail voting after the Supreme Court rejected his executive order this week. "There's an injunction so we're not doing anything," postmaster general David Steiner told The Associated Press in an interview. Steiner, a onetime chief executive of Waste Management, has spent most of the past year atop the postal service navigating political and financial challenges. He's pressing Congress for changes that would help him resolve what he has called a "liquidity crisis." And Trump's efforts to largely eradicate mail voting turned the postal service into an unlikely arbiter of who is eligible to vote just months before this year's critical midterm elections, a role Steiner seemingly had little interest in playing.