Occam’s razor says that the simplest explanation which is consistent with the facts is probably the best one. Galileo’s sun-centered model of the universe was better than the earth-centered model because it was easier. Elliptical orbits instead of figure-8s, etc.
Here is another set of explanations of the same kinds of things Ron Paul was attempting to explain. Much simpler, and to me, much more credible.
This fits a pattern. The Russians lied consistently about Maidan, then Crimea. They can certainly be expected to lie now.
Here is an article by a Silicon Valley Russian emigre explaining why the Russians have to lie. I have seen nothing (other than my own) explaining why the American right is so willing to believe the lies.