nearly impossible to verify. the trump family dismisses it as a nonissue. >> somebody bought a cheeseburger at the trump hotel, it's asinine. >> reporter: jared kushner and ivanka trump's roles in the white house opened up another potential for foreign influence. the timing for ivanka trump branded products, the timing for trade talks raised eyebrows. and officials in at least four countries talked about ways to manipulate kushner. the president's sons have insisted their dad isn't swayed by business deals but the elder trump jumps at every chance to tout his properties on the world stage. even naming it trump national doral. >> it's a great place.