Teamsters president Sean O'Brien took the podium at the Republican National ... and O'Brien is also scheduled to speak at the Democratic National Convention in August. He's rallied alongside ...

Sean O'Brien, president of the International Brotherhood of Teamsters, gave Monday's keynote speech at the Republican National Convention, delivering one of the most anti-big business speeches in ...

Teamsters union president Sean O'Brien thanked ... to address the Republican National Convention. Several months ago, I asked the RNC and the DNC for the opportunity to speak.

Conspicuously absent, though, was another significant player in American labor — Teamsters President Sean O’Brien. O’Brien spoke at the Republican ... speak at the Democratic National ...

Sean O’Brien on Monday became the first Teamsters union president to speak at a Republican National Convention. In his speech, he said the American worker is being taken for granted.

But at last night's Republican National Convention, for the first ... In the spirit of working with both parties, Sean O'Brien has also asked to speak at the Democratic National Convention next ...