SEATTLE — U.S. lawmakers from both parties are pushing back against President Donald Trump’s order to sharply scale back joint military exercises with South Korea, warning that the move could weaken the alliance and benefit U.S. adversaries. The criticism has come largely from Democrats, but Republican Sen. Thom Tillis of North Carolina has also publicly challenged Trump’s decision, making the congressional pushback bipartisan. Sen. Jack Reed of Rhode Island, the top Democrat on the Senate Armed Services Committee, called the move “another inane, haphazard decision by President Trump and his chaotic administration.” “When President Trump cuts military exercises to flatter a dictator or punishes South Korea for declining to join a war he started, all of our allies — and adversaries — think that America’s commitments are negotiable,” Reed said in a statement. “Kim Jong Un has won a propaganda victory and South Korea, one of our strongest allies, has been punished for no reason beyond Trump’s ego,” he added. Reed also warned that China and Russia were watching how W