Businessman Donald Trump’s rise to the top of the polls is surprising to many, but there is recent precedent for an outsider to take the early lead well before the first caucus or primary. Former Godfather’s Pizza CEO Herman Cain led the Republican field for most of October 2011 and held that lead through early November before fading and ultimately dropping out. History suggests there is an interest among Republicans in supporting a nontraditional candidate without the normal experience of …