But he's remained close to Trump and some White House officials, and has been a prominent defender of Trump on television.
While Lewandowski did answer some questions Thursday, Schiff of California said that he refused to respond to inquiries about a Trump Tower meeting with Russians in June 2016 or the preparation of a false White House statement about what was discussed once that meeting became public.
Schiff told reporters that while Lewandowski did answer a set of questions concerning his time after the campaign, "Nonetheless, witnesses don't get to pick and choose when it comes to very relevant testimony to our investigation, so we have requested a subpoena".
Lewandowski first appeared before the committee in January.More news: Trump says he's working with Australia on tariff exemption
It wasn't clear whether Rep. Michael Conaway of Texas, the Republican leading the panel's investigation, would go along with a demand for subpoenas. "I don't talk about things like that", Conaway had said on Wednesday.
Nader has been cooperating with special counsel Robert Mueller's investigators. -Russian relations, according to people familiar with the matter.
Prince, who founded the private security company formerly known as Blackwater, had testified before the House Intelligence Committee that the meeting was by chance and had been set up by an UAE official. He added that the panel is waiting for Prince to provide documents to the committee they had requested.
By contrast, Lewandowski hasn't asserted that the White House asked him not to address certain topics, saying during his initial interview simply that he was unprepared to answer such questions, Schiff said at the time.More news: Virginia advances to semifinals in ACC Tournament with win over Louisville
Rep. Mike Quigley, D-Ill., said Friday that Corey Lewandowski's attorney dismissed three questions about his client's conversations with Trump because "it wasn't pertinent" in his second interview with the committee on Thursday.
"There is really no way to distinguish these witnesses except that some are in favor and some are out of favor with the White House", Schiff said Thursday. Schiff said he wants to determine if Prince lied to the panel about a meeting a year ago in the Seychelles that evidence apparently gathered by the special counsel suggests was an effort to establish a back channel between the incoming Trump administration and the Kremlin.
"The special counsel's obligation is to find out what laws have been broken and decide who should be prosecuted", Schiff said. That agreement requires him to offer information on any matters that the special counsel deems relevant.More news: Valmark Advisers Inc. Takes Position in Alibaba Group Holding Ltd (NYSE:BABA)
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