In retrospect, other than shoddy foreign rumors paid for by Trump's opposition, there never was any reason at all to believe that Trump was colluding with Russia. That so many otherwise intelligent people were scammed just shows how blinding partisan bias can be. I say in retrospect to be polite, but it's actually been obvious from the beginning. as Van Jones famously put it, it was a nothingburger.
The whole thing was a shabby farce. What a blow to what remains of the media's reputation and to the reputation of the FBI.