Yes, we must find out who applied for and got the FISA warrant...and why! A FISA warrant needs to be backed up with evidence. This will actually let us see why the Trump campaign was being investigated.
I not sure this vindicates the campaign or Trumps statements about HIM being wiretapped/surveilled or what ever you want to call it.
The surveillance was for foreign agents and Trump campaign people got caught communicating with them. "Incidental surveillance".
This only begs more questions about what and why this campaign was so involved with Russian agents.
Keep in mind the FBI is still investigating Trump and his campaign people. 
What we do need to do now is to remove Nunnes from the head of this House committee because he has shown his obvious bias and cannot and has not been a neutral chair of this critical committee.
Nunnes is nothing but a Trump surrogate. He cannot be trusted with national security issues.
First time a head of security goes to the subject and give info.