Aidan O'Brien is widely regarded as one of the greatest flat trainers of all time, with a record to match, and jockey Sean ...

Aidan O'Brien's impeccable record at Royal Ascot speaks for itself, and the shrewd operator of the Ballydoyle dynasty is ...

Even before Teamsters President Sean O'Brien made a historic move on Monday by being the first president of the union to speak at the Republican National Convention, fellow members were upset by ...

Teamsters union president Sean O’Brien delivered a fiery yet centrist speech on Monday night at the Republican National Convention, as he advocated for a bipartisan coalition to support American ...

By Michael M. Grynbaum and Danielle Kaye The Teamsters president, Sean O’Brien, has shown an openness to former President Donald J. Trump, dividing the powerful union. Neither candidate will be ...

Sean O'Brien, president of the International Brotherhood of Teamsters, said Sunday he hasn't endorsed in the 2024 presidential race yet because he hasn't yet met with Vice President Kamala Harris ...

Boston-bred Teamsters President Sean O’Brien said if the Trump tariffs bring back “good-paying, middle-class jobs,” it’s worth all the pain because it will benefit future generations.