WASHINGTON — The Trump administration on Monday asked the Supreme Court to overturn a lower court’s ruling and allow it to withhold $4 billion in foreign aid that was previously approved by Congress. The case is one of many lawsuits challenging the White House’s efforts to supersede Congress’ spending authority by canceling funding without lawmakers’ explicit approval. This particular case became more complicated in late August when the Trump administration sent Congress a rescission request, asking lawmakers to cancel billions in foreign aid, including some of the funding subject to this lawsuit. Under the Trump administration’s interpretation of the law, they believe that allows them to cancel the funding even if Congress refuses to go along with the proposal. Lawmakers approved that proposal in July after preserving full funding for the President’s Emergency Plan for AIDS Relief, or PEPFAR.