(CNSNews.com) - Former Secretary of State Hillary Clinton gave a "voluntary" interview to the House Select Committee on Benghazi, and it was her request to testify in public, even though private interviews "always produce better results," committee chair Trey Gowdy (R-S.C.) told NBC's "Meet the Press" with Chuck Todd on Sunday.
"I didn't send a subpoena to Secretary Clinton. It was a voluntary interview and she wanted it to be in public. I wrote a letter several months ago giving her an option, and she chose public, and that's well within her rights.
"I can just tell you that of the 50 some odd interviews we have done thus far, the vast majority have been private, and you don't see the bickering among the members of Congress in private interviews. You don't see any of that."
Todd asked Gowdy if the TV cameras produce "grandstanding" from both Republicans and Democrats.
"What do you think, Chuck?" Gowdy responded. "I can just tell you, in the private interviews there is never any of what you saw Thursday. It is one hour on the Republican side, one hour on the Democrat side, which is why you're going to see the next two dozen interviews done privately because it is -- I mean look at the other investigations that are being done right now.
"The Lois Lerner investigation that was just announced, was that public or private? How about Comey's investigation (of Hillary Clinton)? Is that public or private? The private ones always produce better results."
Todd asked Gowdy if Hillary Clinton was a "cooperative witness."
"She answered the questions," Gowdy responded. "And I would note, I don't think I ever caught her off. She was given ample opportunity, so she answered the questions, yes, if that's your definition of cooperative, yes."
Although Clinton answered all the questions, Gowdy added that she didn't always do so accurately.