KENZO TRIBOUILLARD via Getty Images Author Stephen King says President Trump is scarier than anything he's ever created.

Author Stephen King has been delivering chills for more than four decades with horror masterpieces such as “It,” “The Shining” and “’Salem’s Lot.”

But King now believes there’s something more terrifying than anything he’s ever cooked up, and it’s living in the White House.

On Wednesday, King fired off a pair of tweets about President Donald Trump:

Trump's tweets in his first hundred days draw a pretty clear portrait: he's an almost textbook case of narcissistic personality disorder. — Stephen King (@StephenKing) May 4, 2017

That this guy has his finger on the nuclear trigger is worse than any horror story I ever wrote. — Stephen King (@StephenKing) May 4, 2017

One of the best-selling novelists of all time, King has been a frequent critic of the president’s antics. Last month, King told Trump voters that if they think the president has done a good job, they haven’t been paying attention.

And last year, before the election, King tweeted:

My newest horror story: Once upon a time there was a man named Donald Trump, and he ran for president. Some people wanted him to win. — Stephen King (@StephenKing) October 21, 2016