The premise that number of viewers equates to support is misleading. I tuned in to Obama, only because I need to hear what kind of lies and divisive tactics he's spewing so I can be an informed voter. I bet many Romney supporters in the TV audience were doing the same. If we're going to use Nielsen Ratings as a poll, might as well warm up the American Idol lines, too!
His 2 accomplishments: Bin Laden is dead; GM is alive.
These are done. Neither will need to be repeated if they were both done right the first time. I don't think he's told us what he planned for an encore yet.