Trump and his Saudi hosts boosted each other's agendas. Riyadh gave ‘America first’ $bns in manufacturing deals. Trump got with the ‘Vision,’ and bashed Iran. 

US President Trump visited Saudi Arabia last weekend with two apparent aims – to send a political message to Iran (see p11), particularly given that his following visit was to Israel, and to reinvigorate the US-Saudi long term economic relationship.

The long list of deals signed during the...