A classical Communist will tell you his ideas and his plans up front because he is not ashamed of his words; he expects you to like those ideas and to join him. This also allows the opponent to debate those ideas.
A modern Communist will tell you only what you want to hear. This will be carefully and continuously calculated by teams of analysts and pollsters. He will act as a Communist, but he will look and sound as someone else. He could be a capitalist, he could be a monarchist, he could be a dictator, he could be a liberal... anything goes because none of that is true. He acts this way because he knows that his true ideas and his true plans will not be supported by the population. This also takes away the chance of discussing those ideas and those plans before they are implemented. Modern Communists will even arrogantly tell you to adopt a law just to learn what's in it - and there is nobody to remove them from their positions for just suggesting such an affront to democracy.
With regard to names, there are many. Some call themselves Democrats; a few call themselves Republicans; but none of that matters. Actions speak louder than words, and actions are the only criteria by which we know who is who.
Matthew 7:15...7:20. Definitely pertinent to public officials who would be prophets.