if either the Dems or Pubs want Trump's base, they'll have to at least talk the talk regarding Joe Worker.
that said, no one other than Trump can do that and still get financial support, and still get his message out on corporate media without corporate media sabotaging him, and not be killed by the parties.
Bernie couldn't survive the corporate media and the DNC doing all they could to kill him off 24/7, as the corporate media and their ad base literally all had tens/hundreds of billions riding on his defeat, as did the DNC donor base.
only someone like Trump with an already established personal celebrity large enough that the corporate media can't bury him, can pull that off.
Trump could have been one of the great presidents ever, because he had the celebrity to overcome big money interests, and an understanding of the populace and their needs..
and the personal charisma and celebrity to circumvent corporate media, combined with the political power to circumvent his own party.
but he didn't have any interest what so ever in representing others over himself, and was/is probably more vulnerable to being blackmailed/extorted or crushed by Russia or China or SA and who all knows else, than even Biden or Hilary, given both his level of debt and greed going in.