Ron Paul is the Rodney Dangerfield of Republican presidential candidates.... Why, despite a small but devoted set of supporters, does this 76-year-old obstetrician turned politician routinely get no respect from the media and GOP operatives?... 1. Ron Paul is not a "top-tier" candidate. ...Paul is doing increasingly well in national and state-level polls.... And now that Cain has dropped out, Paul's stock is likely to keep climbing. The congressman is no less a top-tier candidate than anyone else in the race. 2. Ron Paul is a doctrinaire libertarian. ...Paul parts company with many libertarians on many issues. These include immigration,...