I pretty much agree with your points, if not your language. But I disagree with your conclusions regarding McCain’s questioning.
There’s no doubt McCain’s brain has turned to mush. He and Pelosi, among others, are too old to continue in power; old age has turned all their brains to mush. But the right reaction is not to crow about McCain’s situation. McCain had an important point to make, a point not made so far in all the testimony over the months. An opportunity regrettably missed because of his impairment. That is not something to cheer about.
There were many candidates in the last primary, many campaigns, many people peripheral to those campaigns; and two such groups in the main election. A great many of those people had contacts with the Russians. Sanders was once a strong supporter of the USSR, and honeymooned in Russian. Clinton granted the Russians many government favors, not the least of which was ownership of one fifth of all US uranium production, and accepted from the Russians many tens of millions of dollars.
Yet Comey’s FBI has limited its collection of suspects to Republicans, to Trump’s orbit; in so doing, he has de facto exonerated the Democrats from suspicion and investigation.
McCain ineptly tried to call attention to that, and incompetently tried to make Comey come clean about how he made those decisions. We all know how it was done, but an opportunity was missed to get Comey on the record under oath. The plain fact is that Comey simply accepted the Democrats’ list of suspicions as a bona fide list of suspects. No Democrats are suspects because no Democrats are suspected by the Democrats of colluding with the Russians. Which is strange, given that certain Democrats have a history of colluding with the Russians. (*cough*Clinton, Sanders*cough*)
Comey simply opened a criminal investigation of all those people that the Democrats pointed to. With zero evidence, and total partisan motives.