The Russia collusion hoax was born long before Mueller.  They were surveiling the Trump campaign long before even the Page FISA.  The FISA was a legal way to cover their butts for what they had done illegally before - but the problem is the Page FISA was based on bogus information and they knew it was bogus.  That is another crime but if Hillary won, it would not have mattered. Bongino has covered the background on Russia collusion.  It was actually developed thru Glenn Simpson long before 2016 but was then adopted and applied to Trump.