Donald Trump and Stephen ColbertKevin Dietsch / Getty Images / Kevin Dietsch / Getty Images

The broadcast late-night shows are dark this week for the holiday but they were on President Donald Trump‘s mind as he railed against the hosts again on Truth Social Tuesday night before wishing everyone Merry Christmas.

Stephen Colbert, host of CBS’ The Late Show, which has been canceled and will wrap its run at the end of the season, took the brunt of the President’s ire this time.

“Stephen Colbert is a pathetic trainwreck, with no talent or anything else necessary for show business success,” Trump wrote. “Now, after being terminated by CBS, but left out to dry, he has actually gotten worse, along with his nonexistent ratings. Stephen is running on hatred and fumes ~ A dead man walking! CBS should, ‘put him to sleep,’ NOW, it is the humanitarian thing to do!”

While Trump seems to be suggesting that CBS should pull Late Show with Stephen Colbert off the air now instead of wait until May, his “put him to sleep” choice of phrase is raising eyebrows. It could refer to helping someone to bed or administering anesthesia but putting animals to sleep is also a common phrase for euthanasia, which is considered a humane way of killing pets and other animals. And it followed Trump evoking death with the “dead man walking”

The President quickly widened the net of his late-night criticism.

“Who has the worst Late Night host, CBS, ABC, or NBC??? They all have three things in common: High Salaries, No Talent, REALLY LOW RATINGS!,” he wrote.

Colbert, ABC’s Jimmy Kimmel and NBC’s Seth Meyers — all outspoken critics of Trump who skewer him and his administration nightly on their shows — have been frequent targets of the President who has repeatedly asked for their firing and has suggested that their disapproval of him should cost their networks’ broadcast licenses. Trump did it again last night while also mentioning another foe — broadcast networks’ news divisions.

“If Network NEWSCASTS, and their Late Night Shows, are almost 100% Negative to President Donald J. Trump, MAGA, and the Republican Party, shouldn’t their very valuable Broadcast Licenses be terminated? I say, YES!”

While Trump has made similar comments repeatedly over the past year, It is unclear whether his latest attack on late-night was influenced by a study released earlier yesterday by the Media Research Center, a conservative watchdog group which is part-funded by Republican donor Robert Mercer, which reported that 92% of jokes told on the six nightly late-night shows were aimed at conservatives, up from the 82% last year.

With no transition, Trump ended his late-night rant by posting “Merry Christmas!!!” immediately after it.