"Labor unions are politically influential. In large measure they get increased federal activity on projects they sponsor. Their coerced and uneconomic wage hikes cause unemployment. Then they use their pressure for government guaranteed full employment which adds billions to the costs of government. It is precisely this successful pressure on government that is the effective subcause of inflation. This is how labor unions cause inflation!"
January 1, 1970
https://en.wikiquote.org/wiki/Trade_unions