See the following on the Little Green Footballs website for pix of Che Guevara and Cuban flags hanging on the walls of the Barack Obama headquarters in Houston. Guevara was, of course, a Communist revolutionary associate of Fidel Castro, and it is alleged here, a mass murderer.
To be fair to Obama, there is no reason to believe he had a hand in selecting the artwork for the Houston office. Heretofore, attracting radical followers has seemingly been the hallmark of fringe GOP candidate Ron Paul. Obama also would appear to be attracting followers whose politics are far out of mainstream, aka "wingnuts."