Zaid Jilani:

ThinkProgress » FLASHBACK: Ronald Reagan Called Union Membership ‘One Of The Most Elemental Human Rights’: Reagan was the only president in American history to have belonged to a union, the AFL-CIO affiliated Screen Actors Guild. And he even served six terms as president of the organized labor group. Additionally, Reagan was a staunch advocate for the collective bargaining rights of one of the world’s most famous and most influential trade unions, Poland’s Solidarity movement.... December 23, 1981....

REAGAN: The Polish government has trampled underfoot to the UN Charter and Helsinki accords. It has even broken the Gdańsk Agreement of 1980 by which the Polish government recognized the basic right of free trade unions and to strike...

[And:]