GOP Sen. John McCain is positioning himself to be one of President Barack Obama’s strongest supporters, effectively giving Democrats the votes they need to override any GOP attempt to block the new administration’s legislative agenda. Obama heaped warm praise on his GOP rival during a dinner held in McCain’s honor the day before the inauguration, calling him a hero. Insiders duly noted McCain was granted a prime spot on the dais at the inauguration, sandwiched in a seat between White House Chief of Staff Rahm Emanuel and Supreme Court Justice Ruth Bader Ginsburg. The day after the inauguration, Obama and...