U.S. Sen. Arlen Specter, R-Pa., wasted no time going on the offensive against Pat Toomey, his challenger in next year's Republican primary. Toomey officially announced his candidacy on Wednesday morning. Specter came out swinging Wednesday afternoon, accusing his Republican primary opponent of helping to cause the financial meltdown. "Toomey was against regulation. He was with Barney Frank and Dodd," he said, referring to two Democratic architects of the federal bank bailout, Massachusetts Rep. Barney Frank and Connecticut Sen. Christopher Dodd. "He's a big part of the problem, and now like the AIG guys, he wants a promotion,” Specter said. “He...