There are few platforms older than the campaign rally when it comes to politics. But, like Trump, she and her team seemed to understand its power as theater. You dress the set as she did with the flags at Oakland City Hall, you get the extras out, as she did with a reported 20,000 at the rally, and you bring some passion to your message. It’s as old as the Medieval morality play and as current as the Super Bowl halftime show. Political rallies are media, too. And the videos of them are perfectly suited to the on-demand demands of audiences today.