117th U.S. Congress

On the executive branch’s stonewalling of Congress’ impeachment inquiry: "[It's] really extraordinary. It’s not politics as usual, it’s not how these things are traditionally played out and I think it’s quite worrying and troublesome for the integrity of our constitutional democracy that there’s not some amount of … recognition and accommodation by the executive branch of the legitimate prerogatives of the legislative branch.”

"There’s a reason why ‘Profiles in Courage’ is a very short book. Courage is not the norm. It’s the exception."

“How willing are the Mitt Romneys of the Senate to say, ‘We want this to be a serious hearing of the case’? ... So much of this remains an open question."

“I think we saw that [televised hearings weren't] a particularly productive way to get information in front of the committee or in front of the public. Congressional hearings, particularly in today’s media environment, aren’t necessarily well structured for deliberative consideration of material.”