Peaking too early maybe? Take a look at Trump in a couple months and, absent some unforeseen act of providence, you'll see how far a massive crowd at a single event gets you. When you have nearly 100 million people voting, having 20,000 people showing up at an event is having less than 1/10th of a percent of the total electorate. It may look impressive to an individual onlooker, but to voters as a collective, it looks like a cult.
