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Donald Trump may have coasted to a major blowout on Super Tuesday — but it was his supporter and former rival Chris Christie who stole the show at the Republican front-runner's late-night press conference.

The New Jersey governor's inscrutable expression — on display as he stood behind a triumphant Trump in Palm Beach, Florida — became an Internet sensation.

Republican Congressman Justin Amash of Michigan joked on Twitter that Christie standing behind Trump was "like a hostage situation."

No, it's staged to look like a hostage situation. https://t.co/z29OtZcRVy — Justin Amash (@justinamash) March 2, 2016

Christie's curious look lasted for a few minutes as Trump touted his win, and social media users took notice. That led the hashtag #FreeChrisChristie to start trending Tuesday night.

There's just one question on Chris Christie's mind. #SuperTuesday pic.twitter.com/sSDnCXgxBE — The Daily Show (@TheDailyShow) March 2, 2016

Chris Christie has had this expression on his face for 5 consecutive minutes. pic.twitter.com/0KhVWhG9hy — Alexander Panetta (@Alex_Panetta) March 2, 2016

You wanna turn up the volume on this one.https://t.co/GholQYoxid — albertina rizzo (@albz) March 2, 2016

Christie is facing a backlash after endorsing the real estate tycoon-turned-politician last week. On Tuesday, six New Jersey newspapers called for him to resign, while a New Hampshire newspaper said it regrets endorsing his failed presidential bid.

Christie quit his campaign last month after he failed to gain traction in a crowded field.