Sure, but it would take nothing short of a revolution to do so. Like, the entire party elite, who have countenanced the slide from Gingrich to W to Palin to Bachmann to Trump would have to go, or have some sort of Saul-to-Paul conversion event. It's really difficult to imagine. Since the 60s (and especially since the 80s),the GOP has been the party of the racist. And it continues to dig itself deeper into that hole (see http://www.vox.com/2016/8/28/12682876/maine-lepage-racist-sh..., for example).