"That may be because he has spent decades turning his own name into a brand synonymous with success and quality, and he's made himself the mascot for that brand -- like Ronald McDonald or Chef Boyardee," Oliver said. "And that is who we have seen in 'The Apprentice' or 'Wrestlemania' or 'Home Alone 2.'"
There's a lot of truth to this. Trump's brand is so ingrained in American culture -- thanks to his own efforts, I would stress -- that there is this backdrop against which his entire campaign has run. Trump's wealth and success started out as givens, and it has been up to Trump's opponents to disprove them.
Call it a "mascot" or call it what you want, but Trump is symbolic of something many Americans find appealing, and until someone seriously calls into question the validity of his brand -- which I don't think has been accomplished, despite the bankruptcy stories, etc. -- his supporters will continue to give him the benefit of the doubt. Combine that with a healthy distrust of the mainstream media, and it's a recipe for Trump's Teflon.