While I disagree with the take that Trump is exactly what the country needs (save that for another debate) he did lay down the plans for how an anti establishment candidate can win. Go all in scorched earth style and go hard after anyone or any party that tries to derail you. Tout a populist policy and remind everyone that the overwhelming majority of politicians are in it for themselves.

You also have to have a sizable base which only has one issue that matters and that is being anti-establishment. A base with zero political convictions other than wanting the ability to say or do anything that comes to mind without any retribution of any sort. And you then need a sizeable base who will do anything to make certain some groups get a tax cut and the courts are set to make favorable rulings to those same groups. Again, that base has no political or moral conviction other than their unmitigated right to earn as much money as possible in any manner they see fit without any interference from anyone. Find a way to tie those 2 groups together and you can win every election for the foreseeable future. Of course electing someone so you can see the other side cry is silly and childish but that is what a lot of Trump supporters claim they did and will do again....

All politicians are liars...none of them can be trusted....what can be trusted is their past actions, in total, not one offs, and their past words and rhetoric. Until Americans prove capable of acting like adults and telling politicians they will get their vote but they will have to continually earn their support we will have lousy politicians.