If Trump wants to stay 'till the end of his term he will HAVE to go deeper than just a few FBI agents. I think that in the end, not all the bad guys will bite the dust, and many will remain among Republican files. The Democrats, especially the Clintons, are being lined up be the fall guys of this corrupt system, sparing turds of the Republican flavor.
BTW isn't today the State of the Union Address? It will be interesting to see what happens there. I think it will be gloves-off after that.