I don't know what Trump is trying to achieve with this.
It's not so much about what Trump is trying to achieve, more what the establishment figures behind him want. That's right I said it, Trump's anti-establishment credentials are a charade; he's got deep ties to the establishment class in the US, and has done for a while, likely his whole life.
He's got deep ties to the "establishment class", of course, but the difference is that he cannot be bought. Trump is out for Trump; the politicians are puppets willing to sell (or in the case of the smarter ones like Hillary, rent) themselves to the puppeteers. There hasn't been such an American president since at least 1962.
To me, it's a psychological thing. W Bush was the "idiot president", Obama the "aspirational president" and Trump is the "wild-man president", but all these are just semi-characters, as near enough all public speaking is scripted for US Presidents. I know Trump is genuinely shooting from the hip on stage, but let's not forget he's the real professional
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Notice though the major, major, major difference in how the MSM treats Trump. That's what tells you that Trump really is a full-character "wild-man president".
I'm an anarchist, BTW, yet I think it's obvious that Trump is the only "hope" for Americans near-term. The last thing you want is another politician, all of whom cater to the special interests and thinktank-generated geopolitical agendas. Trump is a manager and treats the job as another business. Assuming he's fundamentally honest, as he seems to be, the degree to which he will do good is the degree to which he doesn't allow himself to be fooled by the bad actors (including the funders of ISIS and false flag operators).