Who is "Isaac Lawrence" and what do you plan to do with him?
To put it shortly Isaac Lawrence is an idealistic machiavellian (cunning, deceiving, schemer) . Think Frank J. Underwood from the House of Cards or Peter Baelish from Game of Thrones just with a somewhat nobler purpose. He's supposed to be this man with strong moral values which guided him to a political career of sorts before the infection where he received a hard dose of reality and the way things really work and just how much cutthroat stuff is happening behind the scenes. So he basically learned from that and is using manipulation and lies as a tool to achieve his purpose. You know how sometimes when you create a character you just have a cool scene/idea in mind? With this character that scene is chaos around green mountain, the mlf are all scattered and blaming each other for something Isaac did while making it look like someone else did it and amidst all this chaos, when Mickey is trapped inside of a building alone, he comes to him and says "Hello mr. President, it's a pleasure to meet you" explains to him how he got to him without shooting a single bullet, why he wants him dead and most likely executes him. It's a hard play but a man can dream can't he? For the moment being he's laying low however.