Former Acting Attorney General Sally Yates, former Director of National Intelligence James Clapper and former CIA Director John Brennan had agreed to testify in front of the committee on March 28. But Nunes said the public hearing was being postponed because the committee needed to first hear from FBI Director James Comey and National Security Agency Director Mike Rogers in a private setting.
Comey and Rogers testified in a public hearing before the panel on Monday, when the FBI director confirmed for the first time that the agency is investigating Trump associates’ ties to Moscow as a part of a broader probe into Russia’s interference in the 2016 U.S. election.
The House Intelligence Committee will also interview Trump’s former campaign manager, Paul Manafort, who volunteered to meet with the panel amid >unsettling new reports about his ties to Russia, Nunes said. Manafort, who >stepped down as Trump’s campaign chair in August, worked for a close Kremlin ally to help advance Russia’s interests in the U.S., >according to The Associated Press.
Source : http://www.huffingtonpost.com/entry/paul-manafort-testify-russia_us_58d52fa4e4b02a2eaab2f665