Wolf Blitzer looked like he was about to puke during a CNN segment on Donald Trump … seemingly choking back vomit before the network suddenly cut to commercial.

The ‘Situation Room’ host looked to be in distress Thursday during an interview withRep. Jamie Raskin, making a series of pained facial expressions as Raskin talked about Trump and the Colorado ballot controversy.

Check out the video … Wolf seems to be on the verge of vomiting and he struggles to choke something down and keep his mouth closed.

CNN finally catches on and cuts Wolf’s feed, leaving Raskin on the screen … and seconds later vomit-like sounds are heard off camera as CNN pulls the plug and goes to commercial in the middle of a Raskin sentence.

Wolf did not come back on camera after the break, instead being replaced by CNN chief legal affairs correspondent Paula Reid, who announced “Wolf had to step away” and would “be back.”

However, Wolf never came back before his show ended and CNN told the Washington Post, “Wolf wasn’t feeling 100% while anchoring Thursday night. He looks forward to being back in the Situation Room and appreciates the well wishes.”

For his part, Wolf gave a health update Thursday night, saying … “I’m fine! Thanks for the well wishes. I’ll see you back in the Situation Room soon.”

The internet’s having a field day here … with folks joking the mere thought of Trump on the ballot was enough to make Wolf sick.