Rank-and-file Teamsters voted 59.6 percent for the union to endorse Trump, compared to 34 percent for Harris.

From April 9-July 3, nearly 300 Teamsters local unions nationwide conducted first-of-their-kind Presidential town halls, soliciting endorsement preferences from members via straw polls. The in-person voting was held prior to Biden’s withdrawal from the race. The Teamsters’ polling data shows members backed Biden 44.3 percent to Trump’s 36.3 percent.

Following the Republican National Convention and Biden’s campaign exit, the Teamsters commissioned a national electronic poll of its 1.3 million members, overseen by an independent third party. During a voting window from July 24-Sept. 15, rank-and-file Teamsters voted 59.6 percent for the union to endorse Trump, compared to 34 percent for Harris.