Sean O'Brien, one of the top union leaders in the country, backed Sen. Roger Marshall in the Kansas Senate race against Democrat Adam Hamilton.
https://www.foxnews.com/politics/teamsters-leader-turned-maga-world-darling-backs-republican-key-senate-showdown
https://www.foxnews.com/politics/teamsters-leader-turned-maga-world-darling-backs-republican-key-senate-showdown