President Donald Trump’s rallies — no matter where they occur across the country — have had their share of protesters, but normally those protesters are on the outskirts of the crowds, not standing directly behind the president of the United States during a televised event.

At his Billings, Montana, campaign-style rally on Thursday night, Trump spoke on a wide range of topics — but a man just over the president’s right shoulder stole the attention of many who were watching from home.

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As the president spoke, the man, who was later identified as high school student Tyler Linfesty, made different faces, some just silly — while others were clearly in response to things that Trump had just said.

For example, when the commander-in-chief was explaining how winning the electoral college was different from winning the popular vote and required different strategies and planning, the “man in the plaid shirt” had responses ranging from incredulity (even appearing to mouth “what?” at one point) to simply laughing out loud.

After this had gone on for nearly an hour, a woman in a black dress walked up to him and took his place without any resistance.

This occurred shortly after Linfesty put a sticker on his lapel for the Democratic Socialists of America.

While it’s common for organizers and planners to vet those who will appear on TV and replace protesters and nonsupporters with campaign aids or supporters, that’s something that’s generally done before the speech begins, not almost an hour into it.

The incident went viral on Twitter as #plaidshirtguy, with many comments both positive and negative.

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