Comey will brief Senators in a closed session later today
The market reaction says it all. USD/JPY a touch lower than where it was before the testimony, stocks higher, Treasury yields higher.
Trump refrained from tweeting but called Trump a liar a half-dozen times and dangled some tidbits about Russia interfering in the election and Trump campaign involvement with Russia.
The reaction from Trump's team will be interesting. The President at the moment is at a rally and said "we are under siege... but we will come out bigger and better and stronger than ever."