The dims think he's the best because the papers keeping telling them that he's the best.
You need a two prong approach here. First, give everybody in the office something else to read. Maybe print out a Coulter column every week, cover the top and bottom of the printout with the words: "Chicago Sun-Times" in black marker. Secondly, start up conversations with them about what the Democrats really believe about people and what they want to do to keep power over them.