How is the wiretap illegal if allowed by the FISA court?
“if allowed by the FISA court?”
Do you have any evidence that FISA sanctioned the wiretap?
FISA only applies to foreign entities and their agents. Obama would have to make the case that Trump is a Russian spy to take this to FISA.
If all the evidence he has is a phone call between Mike Flynn and the Russian ambassador then this is a clear abuse of power.