Mark Shields:

David, too vague? No, never.

Judy, I think the best case was made by a unique person, in the sense of Zoe Lofgren, who was a staffer for Don Edwards on the House Judiciary Committee at the time of the Nixon impeachment, was a member at the time of Bill Clinton's impeachment, is now in the House Judiciary Committee.

And she — I thought she drew the distinction quite compellingly. And that was that Richard Nixon, no comporting with a foreign power, no attempt to bring the foreign influence into our elections, that he had tried to influence the election improperly, and tried to cover it up with the FBI and the CIA, and paid for it.

That Bill Clinton, no foreign influence, no rigging of an election, he had, totally improperly and indefensibly, had sexual relations with a 21-year-old intern and lied about it.

But this was a president trying to rig an election coming up in 2020, using a country, an ally under duress, facing an external threat to its survival from Moscow and — from Russia, and in need of our assistance that had already been voted for, and asking for exchange to get that, to meet — or meeting even with the president to validate the new leader of our ally there, that they spy on an upcoming election in the president's principal opponent.