JOHN YOO (LAW PROFESSOR, UC BERKELEY): I think for all of us — all of us Americans, it's not as important what happens to President Trump as a person. It's — what's important is what happens to the presidency and our constitutional system. What does this mean for future presidents? And the weaker that these cases are, the weaker that [Manhattan District Attorney Alvin] Bragg's case is, the weaker that [Judge Juan] Merchan allows a case like this to go forward and get to the jury, the bigger the door is open for any DA in the future to bring charges against a president from the opposite party that they don't like. That kind of harassment of presidents is going to cause them to worry about their legal liability when what they should be doing is focusing on making the toughest decisions on behalf of the American people and on behalf of protecting the country. And do yes, I really do worry. And I think that the only way to put a stop to this, sadly, is for some Republican DAs to prosecute Democratic officeholders, Democratic executive branch officials, Hunter Biden, maybe even Joe Biden. That's the only way, I think, to put a stop to this. Otherwise, what we've seen is a crossing of a constitutional Rubicon where suing presidential predecessors is just going to be the norm.