The Teamsters broke with the union tradition of backing Democrats on Wednesday. Here's a look at how it is different from other major unions.

Although the union did not explicitly back former President Donald Trump, he viewed the decision to not endorse the Vice President as a victory.

Democratic presidential nominee Vice President Kamala Harris received the endorsement of Teamsters local and joint councils across the country, including Pa., after the International Brotherhood of Teamsters' executive board said it would not endorse in the presidential race. (AP Photo/Alex Brandon) AP