Best-selling author Stephen King tweeted that President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE’s recent remarks shared on Twitter in the past week "provide a window into an increasingly disordered mind.”

“Since we are all to some extent his hostages, I find this dismaying and rather frightening,” he added.

Donald Trump's tweets over the last 9 days provide a window into an increasingly disordered mind. Since we are all to some extent his hostages, I find this dismaying and rather frightening. — Stephen King (@StephenKing) November 15, 2018

King’s remarks came after Trump shared a series of tweets seeking to discredit special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's probe into ties between his 2016 presidential campaign and Russia.

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"The inner workings of the Mueller investigation are a total mess. They have found no collusion and have gone absolutely nuts. They are screaming and shouting at people, horribly threatening them to come up with the answers they want,” Trump said in a tweet on Thursday morning.

“They are a disgrace to our Nation and don’t care how many lives [they] ruin. These are Angry People, including the highly conflicted Bob Mueller, who worked for Obama for 8 years. They won’t even look at all of the bad acts and crimes on the other side. A TOTAL WITCH HUNT LIKE NO OTHER IN AMERICAN HISTORY!” Trump continued.

The inner workings of the Mueller investigation are a total mess. They have found no collusion and have gone absolutely nuts. They are screaming and shouting at people, horribly threatening them to come up with the answers they want. They are a disgrace to our Nation and don’t... — Donald J. Trump (@realDonaldTrump) November 15, 2018

....care how many lives the ruin. These are Angry People, including the highly conflicted Bob Mueller, who worked for Obama for 8 years. They won’t even look at all of the bad acts and crimes on the other side. A TOTAL WITCH HUNT LIKE NO OTHER IN AMERICAN HISTORY! — Donald J. Trump (@realDonaldTrump) November 15, 2018

In the past week, Trump also floated claims on Twitter that rampant voter fraud took place in states where Republican candidates have faced tight races in last week's midterm elections.

He also launched a string of attacks on French President Emmanuel Macron in a series of tweets about trade, warnings about nationalism and Macron’s call for a "true, European army."

This is not the first time the horror novelist has taken shots at the Trump administration, however.

Last year, King said Trump was “unfit” to serve as president and called for him to be removed from office.

He also once tweeted that he would block the president from seeing his movies to get back at him for blocking him on Twitter and has called Vice President Pence "creepy.”