Saudi Arabia’s crown prince said Thursday the kingdom wants to invest $600 billion in the United States over the next four years, comments that came after President Donald Trump earlier put a price tag on returning to the kingdom as his first foreign trip.

Bin Salman does not clarify source of funds, offered in US president's first call with a foreign leader since returning to office; figure represents more than half of Saudi GDP

Saudi Arabia​'s crown prince told President Trump in a call that the kingdom intends to invest $600 billion in the U.S. over the next four years.