April 1st did not escape Hilliary Clinton today as she jokingly said to reporters “Today, I am challenging Senator Obama to a bowl-off,” “A bowling night. Right here in Pennsylvania. The winner take all,” she went on to say. But when one of Senator Obama’s aids received the joke via fax he thought it read blow-off, probably because he was expecting it sooner or later. The misread challenge didn’t go down well with the Obama camp and one aid was reported to have said the challenge had Bill written all over it. The Obama camp has since declined the invitation.