The investigation is probing how the Saudis “use their massive wealth to infiltrate ... American cultural institutions.”

In back-to-back events last week, President Donald Trump held court with Saudi government officials and investors who do business with his family’s firms.

Amid a major public relations lift from President Donald Trump at a Miami Beach investment conference sponsored by Saudi Arabia’s Public Investment Fund, the oil-rich nation announced plans

President Trump's son-in-law Jared Kushner, the Trump Organization and Trump golf courses have business connections to the Saudis.

President Donald Trump spoke Wednesday at Saudi Arabia’s annual investment conference in South Florida, a sign the oil giant is increasingly reaching the American mainstream with a signature event designed to promote the country as a global actor seeking to diversify its economy.

Riyadh is hosting U.S., Russian and Arab officials for high-stakes talks on Ukraine and Gaza, more proof of its regional clout and warm relations with President Trump.