“If John Bolton says that in the book I believe John Bolton,” said retired Gen. John Kelly, who served as Trump’s chief of staff for 18 months…

“Every single time I was with him … he always gave the president the unvarnished truth,” Kelly said of Bolton, who has become a figure of intense interest in the impeachment inquiry…

“I mean half of Americans think this process is purely political and shouldn’t be happening but since it is happening the majority of Americans would like to hear the whole story,” Kelly said.

“So I think if there are people that could contribute to this, either innocence or guilt … I think they should be heard,” Kelly said, adding: “I think some of the conversations seem to me to be very inappropriate but I wasn’t there. But there are people that were there that ought to be heard from.”