The latest Democratic soap opera in Pennsylvania erupted this week when Sen. Barack Obama seemed to praise Republican Sen. John McCain. At a campaign stop in Reading, Pa., Obama said “either Democrat would be better than John McCain. … And all three of us would be better than George Bush.” Speaking at a rally in Johnstown, Pa., with Congressman John Murtha, Sen. Hillary Rodham Clinton struck back. “Senator Obama said today that John McCain would be better for the country than George Bush,” Clinton said. “Now, Senator McCain is a real American patriot who has served our country with distinction,...