'Plaid Shirt Guy' Becomes Internet Sensation for Making Faces During President Trump's Montana Rally

The teen was taking some heat from Trump supporters for his actions Thursday night.

It may not be easy to upstage President Trump, but one Montana high school student certainly did Thursday night. 

At a rally in Billings, the high school senior with a plaid shirt was standing behind the president, smirking, rolling his eyes, and doing double takes.

He has been called “Resistance Jim Halpert,” a reference to John Krasinski’s character in "The Office," who was known for making similar expressions to the camera.

The student became a sensation on social media with the hashtag "#PlaidShirtGuy." 

The president's aides were watching too and halfway through the speech; a young woman approaches the teen and asks him to leave. 

He was there with his friends, who were wearing Trump's "Make America Great Again" hats. They too were asked to leave. 

Inside Edition spoke to the high school senior's mother, who said her son and his friends were picked at random to stand behind the president. 

They were given the red “Make America Great Again” hats and asked to show some enthusiasm. But now, they're taking heat from angry Trump supporters who think they were mocking the president.

At the rally, the president lashed out at the scathing op-ed in The New York Times, calling its anonymous senior administration official “gutless” and “a coward.” 

The White House has reportedly narrowed the list of suspects to 12, dubbed “the dirty dozen."

More than 30 members of his senior staff have so far denied writing the essay. 

Sam Nunberg, a former Trump campaign adviser who is now an adviser to ousted Trump strategist Steve Bannon, told Inside Edition he believes the person who penned the op-ed is someone who has denied it.

He agrees that the Justice Department should investigate it.