Republican presidential front-runner Donald Trump on Friday vowed to "open up" libel laws in order to sue media outlets that write "purposely negative" and "horrible" articles about him. "I’m gonna open up our libel laws, so when they write purposely negative and horrible, false articles, we can sue them and win lots of money," Trump said at a rally in Fort Worth, Texas. "We’re going to open up those libels laws," he added. "So that when The New York Times writes a hit piece, which is a total disgrace, or when The Washington Post, which is there for other reasons,...