If the medium is the message, where does Barack Obama’s announcement of Joe Biden as his running mate fit in? First leaked by CNN and announced shortly afterwards via text message and on the Internet at 3:00am, the message employed an entirely different medium than previous vice-presidential picks. Does Obama wish to say that he is the candidate of change because he used a new format or that his ticket now possesses stability and foreign policy experience because of Biden’s profile? Marshall McLuhan meant to say that fact that people in the 1960s had begun watching television in mass numbers, …