Analogously to George Wallace; a man who made several runs for President representing a dying way of thought, who did shockingly well but ultimately never even came close to the White House and destroyed his health while doing so. (This assumes that he continues running over the next several cycles, even as he enters his 70s).
Wallace's ideology was widespread and open in the preceding years, though. Trump's ideology seemingly came out of nowhere (it was there, but no one wanted to admit it). If anyone today is analogous to Wallace, it would be Cruz.
