The former advisor hasn't been an advisor since 2005 and lives in Washington DC, working for the libertarian Cato Institute.
He has personal knowledge of Putin's intentions based on what? This sounds like a little bit of fake propaganda.
Be prepared to wade in and out of endless propaganda of the misinformation and disinformation sort from multiple sides and sources as the crisis in eastern Europe turns more and more into a political contest and "war" of economic futures.