Knowing they could go to prison for doing so? A scrumbum rats on another scumbum. What's the big deal? Trying to undermine the credibility of the rat fink scumbum does not enhance the credibility of the rattee. He/she is a scumbum too. The whole circus atmosphere is absurdly ridikkalus! The Manafort team is going to discredit Rick Gates. Why? Because their client is guilty and quite possibly even a Russian agent who has a long history of scumbum activities to his credit or debit depending upon your point of view. You represent a bum so you attack another bum. And so it goes.