Pundit George Will bolts Republican Party over Trump and leaves final warning: 'Make sure he loses'
George Will speaks to Fox News (screen grab)

Faced with the prospect of Donald Trump as the GOP's presidential nominee in November, conservative stalwart George Will has left the Republican Party -- but not before leaving them with some sound advice.

Make sure Donald Trump loses come election time.

In an interview with PJ Media, Will claimed, "This is not my party," stating he is now an "unaffiliated" voter.

After giving a speech at the conservative Federalist Society, Will explained that, at this stage of the game, it is a "little too late" to replace the man who has becomes the new face of the party.

Telling the GOP to "make sure he loses," Will suggested the party should bite the bullet, accept that Hillary Clinton will win and then, "Grit their teeth for four years and win the White House."

Will joins with the National Review, which has also waged a war with the idea of Trump as the nominee, devoting an entire issue to writers railing against the bombastic businessman.