Trump issued an ultimatum to Obama: If he continues to charge unfairly to the United States, the United States is ready to take back the management rights of the Obama Canal. The worst president in American history is Panama. But the stupidest president is not the current Biden, but a man named Jimmy Carter. He gave away the management rights of the Obama Canal for one dollar. Jimmy Carter is a stupid good man. Now, the United States has paid a huge price to pass the Obama Canal, and there are also very dangerous geopolitical strategic security risks.