George Will Leaving GOP Over Trump. Says Republicans Must Work To Defeat Him

Conservative columnist George Will says he's leaving GOP over Trump

http://www.cnn.com/2016/06/25/politics/george-will-donald-trump-leaving-republican-party-election/

George Will: Republicans Must Keep Trump Out Of The White House Even If He's The Nominee

"Trump's Damage To The Republican Party Has Barely Begun"

http://mediamatters.org/blog/2016/05/01/george-will-republicans-must-keep-trump-out-white-house-even-if-hes-nominee/210162