Campanha sindical contra “Right to work” Initiative 198 (The right of a person to seek, obtain or retain employment shall not be denied or abridged because of membership in or non-membership in any labor organization ), no Estado de Washington em 1956. Os financiamentos ilegais por parte dos Teamsters a esta campanha fizeram parte da investigação do Congresso dirigida por Robert Kennedy:
Mr. Kennedy. If the money to defeat the initiative comes from the teamsters ?
Mr. Sylmsster. It was my understanding and every check that I received myself was on Western Conference of Teamsters.