in a string the tweets today, the president is demanding that the anonymous whistle-blower be exposed and questioned and is putting new pressure on the intelligence community s inspector general whose own investigation validated the whistle-blower s complaint. joining me now is nbc white house correspondent kristen welk welker, jeff mason, michael carpenter, and jacqueline a allemagne. kristen welker, the president overheated last night, with the white house now saying no cooperation at all, even though they were talking at least about permitting some people to testify. but they cut it all off. the white house making it very clear, andrea, that they have no plans to cooperate with the house inquiry. their argument is this is illegitimate and unconstitutional because there