When the going gets tough, start thowing punches

The tone of Barack Obama’s post-primary speech in San Antonio on Tuesday had a darker and angrier Barack Obama behind the podium. Senator Obama seemed to move away from the anthem of “change,” and appeared ready to bring a more pointed strategy to his campaign (see here, here and here). The question now is whether the Illinois Senator will keep this strategy through to Pennsylvania. He’ll need to if he wants to win the state.