In the remarkable race for the 2012 Republican presidential nomination, it now appears to be a three-way contest among embattled frontrunner Herman Cain, one-time favorite Mitt Romney, and the surging Newt Gingrich. Poll Position’s national scientific survey of Americans saying they plan to vote in the 2012 Republican primary or caucus was conducted Tuesday night as Cain found himself embroiled in a growing controversy over sexual allegations made against him by four women – allegations Cain emphatically denies as baseless. The poll found 24% backing Cain, (actually 24.4%) 20% Romney, (actually 19.5%) 19% Gingrich,...