CHICAGO, July 7 (UPI) -- Sen. John Kerry, D-Mass., announced his pick for the Democratic Party's vice presidential nomination Tuesday on the Internet, but how long will it be before voters actually get to choose the president and the vice president with a few keystrokes online? Sooner than many have predicted -- perhaps within four to eight years. "We're one presidential election, or maybe two presidential elections, away from Internet voting," said Ron Klein, a state senator and Democratic Party leader in the Florida Senate, who was involved in the 2000 election recount in Florida. "There's no question that Internet...