>>6007789 (pb)
I think "they" were spying without the warrant. I think spying on opponents is wholesale. Cruz, Paul, Trump, Jeb, Carson, they are all subjected to it. The justification is pure politics.
The FISA warrant is used to legitimize, to get a court to find that the snooping is justified. A side benefit of getting a warrant is that is the snooping is ever found out, the snooper has a statutory defense to otherwise criminal use of the snoop. Nobody will go to jail for snooping on Trump's people. See 50 USC 1509(b).