Book alleges UAE and Saudi leaders set up secret accounts for Jared Kushner

Matthew Cole's book "Princes and Thieves" alleges that Mohamed bin Zayed of the United Arab Emirates and Mohammed bin Salman of Saudi Arabia set up two secret "slush fund" accounts, informal funds kept outside normal oversight, for Jared Kushner during Donald Trump's first term. The book says payments went into them. Kushner calls the claims "completely insane."