"And the idea is, if the president committed obstruction of justice, fired the director of the of the FBI to negatively impact or to shut down our investigation of Russia's malign activity and possibly in support of his campaign, as a counterintelligence investigator you have to ask yourself, "Why would a president of the United States do that?" McCabe said. [Source]
"... if the president committed obstruction of justice, fired the director of the of the FBI to negatively impact or to shut down our investigation of Russia's malign activity and possibly in support of his campaign ...," as a halfway intelligent human being, you have to ask yourself whether those are legitimate premises for Andrew McCabe's conclusion.
Did the President commit obstruction of justice? First of all, to obstruct justice requires that whatever it is that's being obstructed must be constitutional. Since the "investigation" was allowed to continue way beyond anything allowed by reasonable suspicion or probable cause, the answer is obvious that the President did not obstruct justice no matter his reasons for firing Comey. Comey was blatantly wrong or malicious himself for allowing the investigation to continue, or even start in my view.
Did the Russia government do anything overtly or covertly to throw the election? There has been zero evidence ever presented anywhere that it did. There were allegations of reasons to suspect that were accompanied by clear disclaimers that there was no conclusive evidence.
We also know where the infamous Steele Dossier came from and how its sources were hidden from the FISA court, which court should have already come down like a ton of bricks on those who withheld critical info. Nevertheless, shame on the judge who didn't ask the right questions and did hold out for enough info.
Lastly and even though it really doesn't matter, anything any private Russian entity or entities did was completely blown out of proportion by neocons, who only hate Russia because they don't control Russia. What those entities did was not even a drop in the bucket, went both ways (for and against Trump), and mostly echoed what Americans were already completely well aware of and had started themselves rather than had picked up from any Russians.