Trump's tweets on September 11th show he's "disconnected," Kerry said.

Former Secretary of State John F. Kerry on Tuesday denounced President Trump's tweets on the occasion of the 17th anniversary of the terrorist attacks of September 11, 2001, claiming that they revealed the president was disconnected.

In an interview with Fox News Radio, Kerry also sharply criticized Trump about North Korea and said he hoped the author of an anonymous platform claiming to be part of a resistance "within the administration became public and resigned in protest.

Kerry has been in a media blitz to promote her new book. He spoke a few hours after Trump visited Twitter on Tuesday morning to launch new attacks on the FBI and the Justice Department.

"I'm thinking of waking up on September 11th and what did we wake up from the White House?" Kerry asked. "The president tweeted, attacking Jeff Sessions, his attorney general. That's what he thought this morning.

"You know, it just upsets me – that's where we are – and I think that means we're disconnected from the heart of America right now, and really important moments," Kerry added.

Among the tweets that Trump sent, there were messages commemorating the 17th anniversary of the attacks and edges against the Department of Justice in which he argued, inter alia, that the department should have taken stronger action against former FBI officials Peter Strzok and Lisa Page.

Trump also drew criticism on Tuesday after a photo of him pushed him in the air before speaking at a memorial service in Shanksville, Pennsylvania.

Regarding North Korea, Kerry said Trump had not prepared well for the summit with North Korean leader Kim Jong Un in June and denuclearization was unclear.

"You have to have a strategy, you have to have more than the glitzy meeting with the flags and so on, and beautiful statements," said Kerry.

He warned that "most long-term observers in North Korea do not believe that Kim Jong Un really intends to give up his weapons."

Kerry also said that although he can not "guess" the decision of last week's New York Times author to continue working in the administration, he would like that person to have disengaged from his position. functions.

"They must come together and lobby the US Congress to make this case serious and serious," he said.