Clinton's Silly 'Trump Yourself' Facebook App Has Serious Data-Collecting Goal

For years people have turned themselves into sprightly imps around the holiday season with OfficeMax's beloved "Elf Yourself" app. On Thursday the Hillary Clinton campaign released its own version of the game, a Facebook app called "Trump Yourself" that slaps Trump's insults on their profile photos.An example on the Trump Yourself website, for example, shows a smiling Clinton backer's photo covered with the words "Fat Pig! -- Donald." (Mr. Trump called Rosie O'Donnell a "fat pig" in 2009.) A pr