This was a bit of a surprise to me, though I have not been watching that closely:

Faye Moore, the up-and-coming president of Local 371, who was seen as a possible contender to lead DC 37, was ousted as president of her union by a decisive margin on Friday.

Moore lost a hotly contested race to Anthony Wells, who had been the vice president for research, by a vote of 2,527 to 1,877.

Wells’ entire eight-person slate of officers—which included five incumbents who chose to back the challenger—defeated Moore’s ticket.