I just watched a short piece on CNN where they interviewed the brain dead in line for last night's Trump rally. Yes they still believe that Obama tapped the Emperor's phones. And yes, it is completely okay that he colluded with the Russians because Hillary was evil and he did what he had to do.
Comey stated there was no evidence that Obama himself were personally involved with the wiretapping (word is antiquated) but did not rule out other kinds of surveillance against the Trump campaign. Comey couldn't elaborate any further because it still an ongoing investigation.
You're making an unfounded assumption that Trump personally colluded with the Russians when the FBI can't find any such evidence but SOMEONE in the Trump's campaign did according to Comey. Whomever did, betrayed everyone.
Because the Cold War ended doesn't mean the Russians has stopped spying, hacking or whatever, it's naive to think otherwise. They are and still will in the future.