R. Thomas Buffenbarger, who is retiring Jan. 4 as president of International Association of Machinists and Aerospace Workers, will work as an unpaid liaison to labor groups on the campaign of Democratic presidential front-runner Hillary Clinton, according to Forbes. Union, known as IAM, is largest among Boeing employees, Forbes said IAM has 400k active members and endorsed Clinton in 2008 presidential primary, Forbes said
Source: Bloomberg.com news