Mark Halperin was wrong about everything having to do with the election. There was also that thing about recommending to McCain that he paint President Obama as a terrorist Manchurian candidate. If that wasn't enough reason to question his credibility on the subject, he famously underscored that Drudge rules his world.
So HBO has decided to embrace his hackish wrongness on everything by turning his forthcoming book about the election into a movie.
HBO originally planned to option the election story from A Useless Pile of Rotting Cheese Curd, but they clearly ended up settling for the next best thing.