- U.S. leaders play "Game of Thrones," fans, scholars say
- HBO show has five parallels with United States, fans say
- Do "white walkers" represent climate change?
- Scholar: In show and United States, politics is "played by the elite"
(CNN) A fire-breathing dragon has never vaporized a senator giving a pompous speech on C-SPAN. No candidate has ever poisoned a rival at his wedding reception, and no "white walker" zombie has ever dragged a screaming climate change skeptic away.