Fox News – Congress banned online gambling in 2006. But new laws across the nation are rolling the rules back — and lawmakers think they’re holding a royal flush. Mega-entrepreneur Richard Branson’s Virgin Group is the latest entry in online gambling, teaming with the Tropicana Resort in Atlantic City and online game maker Gamesys to bring online poker, blackjack and slots to New Jersey this week. Gov. Chris Christie validated the vice in the waning weeks of 2013, saying he hoped to rake in $1 billion in casino revenues this year, of which the state will collect a 17 percent…