President Trump’s trip to Saudi Arabia is designed to highlight his “art of deal” by clinching a massive $100 billion arms deal. But instead of using his presidency to be a salesman for the arms industry, Trump should be a statesmen for the suffering Yemenis. He should use his visit to press for a ceasefire and negotiations to end the conflict in Yemen. This is not the first time American politicians have been pushing Saudi arms sales. U.S. weapons dealers have been selling weapons to the kingdom for decades. Sales reached a new climax under President Obama, as Saudi Arabia became the largest purchaser of U.S. weapons. The Obama administration bragged that it had sold $115 billion dollars worth of weapons during its eight years.