“Late Show” host Stephen Colbert thinks the hosts at Fox News might be starting to get nervous that they could lose the support of President Donald Trump.

Colbert played a clip of Sen. Lindsey Graham (R-S.C.) calling out Trump on “Fox & Friends” over his decision to pull U.S. troops out of northern Syria as Turkey gets set to invade.

The Kurds have been a key U.S. ally in the fight against ISIS but are considered terrorists by the Turkish government.

“I expect the American president to do what’s in our national security interest,” Graham said. ”And it’s never in our national security interest to abandon an ally who’s helped us fight ISIS.”

Colbert said the Fox hosts looked uncomfortable as Graham spoke.

Then he zoomed in to see what they were thinking during the segment ― complete with mock voices from inside the hosts’ heads: