Saudi-US relationship 'critical' says former US ambassador

Joseph Westphal, Wharton's Lauder Institute and former U.S. ambassador to Saudi Arabia, discusses Saudi Crown Prince Mohammed bin Salman's visit with President Trump as the two countries seek to strengthen ties between them. Saudi Arabia is interested in U.S. investments in its country, says Westphal.
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Wed, Mar 21 20188:15 AM EST