Tennessee Sen. Bob Corker (R) blasted President Donald Trump in a scathing interview with The New York Times on Sunday, saying the vast majority of congressional Republicans were concerned with the presidents volatile behavior and that rhetoric from the White House could set America on the path to World War III.

During the interview an unprecedented assessment of the head of the senators own party Corker said Trump concerns him and that the presidents proclivity for Twitter tirades had hurt the country during times of negotiation.

I know he has hurt, in several instances, hes hurt us as it relates to negotiations that were underway by tweeting things out, Corker said, adding that everyone knows the president tweets out things that are not true.

Look, except for a few people, the vast majority of our caucus understands what were dealing with here, Corker continued. Of course they understand the volatility that were dealing with and the tremendous amount of work that it takes by people around him to keep him in the middle of the road.