Trump: ‘Overrated’ George Will ‘lost his way a long time ago'

Donald TrumpDonald John TrumpWSJ: Trump ignored advice to confront Putin over indictments Trump hotel charging Sean Spicer ,000 as book party venue Bernie Sanders: Trump 'so tough' on child separations but not on Putin MORE is weighing in on George Will’s decision to leave the Republican Party because of the presumptive GOP presidential nominee, saying the conservative pundit “lost his way long ago.”

Trump took to Twitter early Sunday, after returning to New York from a trip to Scotland to open a golf course.

“This is not my party,” Will, a frequent Trump critic, said during a Friday speech to the Federalist Society, according to the conservative-leaning outlet PJ Media.

Will said he has switched his Maryland voter registration to "unaffiliated."

“Make sure he loses," Will said during a later interview, adding that Republicans should "grit their teeth for four years" during a Hillary ClintonHillary Diane Rodham ClintonBernie Sanders: Trump 'so tough' on child separations but not on Putin Anti-Trump protests outside White House continue into fifth night Opera singers perform outside White House during fourth day of protests MORE presidency and win the White House in 2020.