Sen. Bernie Sanders is leading in the key California primary to pick the Democratic challenger to President Donald Trump in the Nov. 3 election, but former Vice President Joe Biden swept many other states where voters also cast ballots on Tuesday, U.S. media projected.The outcome of the Super Tuesday voting revived Biden's front-runner status, which had been reeling after he saw dismal results in the first three nominating contests despite his name recognition and experience as Barack Obama's vice president.Of the 14 states that held primaries Tuesday, the 78-year-old Sanders took the lead …READ FULL ARTICLE