It has steadily declined. The unions are not used nowadays at all. In the 70s approximately 35% of people were unionized. In 2013 only 11.5% of workers belong in a union and fight for workers rights. Unions strength has weakened because people are not interested in them.
I believe the answer is kennedy
Resolved, that this Congress will apply to His Majesty for a redress of grievances under which his faithful subjects in America labor; and assure him that the colonies hold in abhorrence the idea of being considered independent communities on the British government, and most ardently desire the establishment of a political union, not only among themselves but with the mother state, upon chose principles of safety and freedom which are essential in the constitution of all free governments, and particularly that of the British legislature.
SO BASICALLY POLITICAL UNION
It is spread by infected mosquitoes.
