From Glenn Greenwald:
"James Comey's testimony amounts to a statement that -- even according to the administration's own loyal DOJ officials -- the President ordered still-unknown spying on Americans, and engaged in that spying for a full two-and-a-half-years, that was so blatantly and shockingly illegal that they were all ready to resign over it. And the President's Attorney General then lied to ensure that this episode remain concealed. Mere one-day calls for a Congressional investigation are woefully inadequate here."
If you have not seen Comey's testimony you can watch it here: