By Rowan Scarborough
The Washington Times
May 30, 2017
What caused the Barack Obama administration to begin investigating the Donald Trump campaign last summer has come into clearer focus following a string of congressional hearings on Russian interference in the presidential election.
It was then-CIA Director John O. Brennan, a close confidant of Mr. Obama’s, who provided the information — what he termed the “basis” — for the FBI to start the counterintelligence investigation last summer. Mr. Brennan served on the former president’s 2008 presidential campaign and in his White House.