continues to float these balloons and to push the limits, see what he can get away with, see what republicans are willing to push back on. so far the answer is not much. another former sdny prosecutor also said mccabe could have a case for retaliation. it depends if he can prove there was no lack of candor. so far the timing of his firing is questionable, the tweets surrounding it. it's amazing when you take a step back how much is being done on twitter. twitter is the place to be if you're following the investigation right now. that doesn't help the president because the president spent a great deal of time fweeting about and trying to discredit andy mccabe. >> natasha, what do your sources say about how in peril the investigation is? in shelby's report, the nbc news talking about bob mueller. people hold that investigation in high regard. is the concern founded that that sort of buffer protecting it