In the interest of full disclosure I am totally guessing that neither did anything to materially improve the lives and fortunes of working-class Americans and neither Donald Trump will, nor would Kamala Harris. Working people in the US, as in the rest of the world seem to me to be shafted for good, by all sorts of economic forces that they have no control over. I'm speaking in this as a current academic but one-time unskilled, immigrant worker.
It used to be that you could feed yourself and your family with "the sweat of your brow". Not any more. Who is working to change that?