I don't think Sanders would have reveled in the accusations and criticisms made by his detractors, the way Trump did. Trump's 2005 remarks struck me as the end for him, and I suspect many others felt the same way. I think that Sanders would have tried to fight back against the mud that would have been slung at him. He would have had one hope-- that the young voters that came out in droves for Obama in 2008 would show up, and that a new generation of 18-29s would join them. And I just don't think they would have, as self-defeating as that would be.
"Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts don't go away when scientists debate rival theories to explain them. Einstein's theory of gravitation replaced Newton's in this century, but apples didn't suspend themselves in midair, pending the outcome. And humans evolved from ape- like ancestors whether they did so by Darwin's proposed mechanism or by some other yet to be discovered."
-Stephen Jay Gould
-Stephen Jay Gould