Exclusive: Secret witness in Senate Clinton probe is William Campbell, ex-lobbyist for Russian firm Rosatom

Exclusive: Secret witness in Senate Clinton probe is William Campbell, ex-lobbyist for Russian firm Rosatom https://t.co/cGrseJFdMj pic.twitter.com/hdwvQSdScS

— Wendy Siegelman (@WendySiegelman) November 16, 2017