My complaint about his "rigged election" theme was that it is really demoralizing and is likely to make people ask why they even bother voting in a "rigged election" at all.
But I am 100% on board with a "rigged system" theme, coupled with Trump's plea for voters to help him turn the tide. This is much more optimistic for voters, and involves them in a larger movement.
We’re going to beat the system and we’re going to un-rig the system, Trump said Friday inside Johnstown’s Cambria County War Memorial Arena,