Show' host, who started his Monday broadcast addressing his ‘Late Show’ counterpart’s cancellation, also posted on social media last week about the news.

Adam Scott, Judd Apatow, Katie Couric and more stars also weighed in on the shocking news, which Colbert announced during the July 17 taping

In his opening monologue during Monday’s show, Colbert, who has been an outspoken critic of the president on his show, acted aghast at Trump’s post.