You're probably thinking of Sean O'Brien, who is head of the Teamsters. He did not directly endorse Trump but was more critical of Harris. He spoke at the RNC and tried to speak at the DNC and was denied.

en.wikipedia.org/wiki/Sean_O%...

en.wikipedia.org/wiki/Sean_O%...

Watching @nicollewallace.bsky.social coverage of the future emptiness of our ports and I remembered the above 🫏hole Sean O’Brien spoke at the RNC with 60% of the Teamsters membership supporting the 🍊man baby. Doubt they’ll be whining about the price of diesel.🤔🙄

That someone is head of the Teamsters and he would have sent Markie Wayne to the hospital or worse.

You don't throw down with a pissed off Irishman..😆

President of the International Brotherhood of Teamsters.

en.wikipedia.org/wiki/Sean_O'...

en.wikipedia.org/wiki/Sean_O%...

1️⃣: Sean O'Malley (fighter)
"Sean O'Malley (born October 24, 1994) is an American professional mixed martial artist. He currently competes in the Bantamweight division in the Ultimate..."
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https://en.wikipedia.org/wiki/Sean_O%27Malley_(fighter)

However, there IS now a labour union leader with that name: Sean O'Brien, who leads the 1.3 million members strong IBT in the USA. A curious coincedent! en.wikipedia.org/wiki/Sean_O%... [2/2]

That someone is head of the Teamsters and he would have sent Markie Wayne to the hospital or worse.

You don't throw down with a pissed off Irishman..😆

President of the International Brotherhood of Teamsters.

en.wikipedia.org/wiki/Sean_O'...

Oy vey.

en.wikipedia.org/wiki/Sean_O'...