Presidential candidate Donald Trump gives a thumbs up during the CNBC Republican Presidential Debate at University of Colorados Coors Events Center October 28, 2015 in Boulder, Colorado.

With the release of the 2005 "Access Hollywood" tape and Donald Trump's subsequent drop in the polls, many already reluctant Republicans are now running for cover from him and his campaign.

House Speaker Paul Ryan and Senator John McCain are the most prominent among them, and Trump has responded by calling them out individually on his Twitter feed. The GOP civil war so close to erupting so many times during the course of the Trump campaign is finally here. All because of a new drop in the polls that may or may not last very long.