MIAMI – John McCain sharpened his economic attack Friday by accusing Barack Obama of plotting to turn the tax code into a tool for redistributing wealth, an idea he equated to welfare. "When politicians talk about taking your money and spreading it around, you'd better hold on to your wallet," Mr. McCain told a raucous crowd in Miami, where he debuted the tougher rhetoric. "His plan gives away your tax dollars to those who don't pay taxes. That's not a tax cut, that's welfare." Mr. McCain has found renewed energy and a forceful voice in harping on Mr. Obama's comment...