Politicians are challenging Donald Trump’s relationship with Saudi Arabia. Senator Elizabeth Warren said that the president has refused to halt weapons sales because he is more interested in appeasing US defence contractors than in holding the Saudis accountable for Jamal Khashoggi’s murder or for thousands of Yemeni civilians killed by those weapons. Senator Bernie Sanders is equally critical of Trump’s relationship with the Saudis, citing it as an example of his liking of foreign dictators. The Senate voted 63-37 to run with Sanders’ resolution to force Trump to end US support for the Saudi-led coalition in Yemen. That same day, it emerged that Riyadh had confirmed a $15 billion deal with defence contractor Lockheed Martin for a missile defence system. One observer said Trump’s determination to preserve Saudi arms sales was an example of the ‘stranglehold of defence contractors on our military policy’.