A good case for just suing the president - https://www.defiance.news/p/investigations-wont-be-enough-the
Apparently the House, with a simple majority, can bring lawsuits. And they have good cause to sue this administration for usurping their power. So if the Democrats take back the House *AND* grow spines, they could take immediate action to stop the flow of money into the orange coward's pockets.