they did and did not talk about. caitlyn joins me live from washington this morning. caitlyn, what was off limits for these two witnesses? >> reporter: good morning, laura. these are two crucial witnesses. mark short, the chief of staff to mike pence as vice president and greg jacob, the chief d counsel to pence. they would not discuss their direct conversations with president donald trump or other conversations they knew of that were direct conversations with trump. that's because trump's team came to them and instructed them not to talk about what's called presidential communications. those were off limits and more importantly, the vice president's office, their team, decided that they were willing to oblige with this request from the trump team. so the thing is here though, i mean, it's important the parameters that are being set but the thing is they were willing to talk about a lot of things. this was a very small amount of questions in the interviews.