"I think we'll go through a period when there's a revival of concern about ethics. After Watergate, we got the Ethics in Government Act, which has a lot of additional regulations."
"The course I teach, Professional Responsibility, was brought into law-school curriculums and required by most states for admission to the bar beginning in the 1970s."
"When people are making up stories about Bob Mueller on Fox News and those get traction in congressional committees and in the White House, at a certain point, I've got to say no."
"If ethics is limited to financial conflicts of interest - that's really what I did in the Bush White House - that's a huge problem for me because Trump refused to sell his businesses. We don't know where he's getting his financing."
"I think there is an overwhelming support for campaign finance reform, and that includes conservatives and Republicans. Where the problem is is with the leadership; with the politicians who are benefiting from the big campaign contributions, and the dark money in the electioneering communications and so forth."
"Well, the elected officials in both parties are receiving campaign contributions and support through electioneering communications from groups that aren't technically affiliated with the campaigns, but really are. That's the off-the-books financing of electioneering communications that's going on."
"Having a representative democracy requires the confidence of the voters in the system. And if voters lose confidence in the system they can make some very bad decisions."
"The American experiment with representative democracy has been a great success, but we need to realize that it needs to be a genuine representative democracy where ordinary people have a vote, have a voice in choosing the candidates who represent them."
"I'm out of the Republican Party. I'm fed up."
"I am not going to apologize for my service to the country."
"People knew Trump had strange relationships with the Russians even before he was elected. Consequently, there is every reason to investigate whether Donald Trump is a Russian asset."
"This is how the Russians have operated for years - they get the goods on people and then they can get you to do what they want. This is how someone like Donald Trump could be turned into a Russian asset."
"It is rational Republicans who want to pull the plug on the Trump presidency."
"Do not overlook that Donald Trump is an inherently unstable person. He's never been able to have stable businesses or stable marriages. It is then wholly predictable that Donald Trump would be unable to have a stable presidency."
"I think the Republican Party has moved substantially to the right, particularly on social issues... And the Democratic Party has moved to the left over the past decades. So we've got a lot more room in the middle."
"If I do a campaign, I'm going to do it my way."
"I've been concerned about ethics in government for a long time. And the problems we've had under President Trump are only indicative of the longer-term problem of the erosion of public office and government."
"I've taken firm positions on issues the voters care about, and I will get my positions implemented."
"Ethics knows no party. Those rules should be applied the same in a Republican administration and a Democratic administration."
"The second part of the Mueller report lays out a very clear case against Donald Trump for obstruction of justice. The facts are very strong."
"Criminal conspiracy requires not only that the conspirators know that a crime is going to be committed, but that they knowingly intend to help each other commit the crime - and then commit certain overt acts in connection with that conspiracy."
"Russia may very well be front and center again in 2020 as they were in 2016 regarding interference in America's presidential election. But the Trump administration is seeking to use its power of diplomacy to bring other countries into the act as well."
"Donald Trump wants to ignore the rule of law. He ignores the Constitution. He ignores the subpoenas. The Republicans in the House and Senate are afraid to stand up to him, with only a few exceptions."
"If President Trump will not remove White House officials who are clearly violating the law, he's not doing his job and this would be yet another grounds for Congress considering impeaching and removing the president."
"I have to say that every white-collar criminal defense lawyer knows when the chief financial officer turns state's evidence, everyone in the executive suite is in a lot of trouble because the chief financial officer knows exactly where the money is coming and going."