The Guardian | Emma Ashford: Trump�s strong criticism of Iran may have been pleasing to his Saudi Arabian hosts, but it should worry Americans

Donald Trump�s visit to Saudi Arabia was a huge success. The Saudis wisely pandered to the new president�s foibles, rolling out the red carpet for a lavish celebration. Even Trump�s speech on Islam, a potential minefield, was generally well-received by his hosts.

Yet while Trump�s speech � and his strong criticism of Iran � may have been pleasing to his Gulf States� hosts, it should worry Americans. Pushing back on Tehran allows Trump to symbolically break with Obama�s policies and is popular among congressional Republicans, but it is also dangerous, with the potential to undermine the nuclear deal, slow the fight against Isis, and embroil the United States more deeply in parochial regional struggles.

Indeed, though Congress and the White House are at odds on issues from health care to Russia, they generally share a determination to ratchet up pressure on Iran, whether via sanctions, regional military support or arms sales. This pushback is often attributed to Iran�s ballistic missile testing: though the nuclear deal does not in fact obligate Iran to stop testing, policymakers have pushed for a US response, arguing that the tests violate the spirit of the agreement.

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