The International Brotherhood of Teamsters has announced it will not endorse any presidential candidate in the upcoming election, breaking a nearly three-decade tradition of supporting Democratic candidates. This decision follows the union's inability to secure commitments on key union issues from either Donald Trump or Kamala Harris. Internal polling revealed a preference among members for Trump over Harris, with 59.6% favoring Trump. The decision has caused disappointment among prominent Democrats and other labor unions that have endorsed Harris. Despite the national union's neutrality, some regional Teamsters organizations, such as those in Michigan and Chicago, have chosen to endorse Harris independently.