TILLIS: "What I don't want to do is all of a sudden open it up to where we effectively have the impeachment inquiry on the Senate side."
MURKOWSKI on Bolton testimony: "I don't think there's any decision on Bolton because we don’t have articles."
On Bolton: "It's very difficult to decide that until we go through the first few stages and look at all of the witnesses that each side would like to have if we get to it."