To the surprise of no one, Sen. John McCain , the Republican Party’s frequent goad and sometimes hero, continues to go his own way. On Thursday, for instance, McCain broke with his party’s strategy on the fiscal 2010 budget resolution and offered a full substitute proposal. House Republicans were pressing a comprehensive, leadership-blessed alternative to the Democrats’ budget in that chamber, but Senate GOP leaders had decided to attack the Democrats’ proposal amendment by amendment. That didn’t suit McCain. He argued that an alternative should be offered to show the public that Republicans have a vision for the country. His...