The case involves Illinois worker Mark Janus, who argues he has a constitutional right not to contribute anything to a union with which he disagrees.
Sens. Warren, Markey side with unions in Supreme Court case →
But Mark Janus, an Illinois state employee, says the union uses his fees — about $50 a month — to negotiate for positions he disagrees with, such as higher government spending.
Supreme Court justices hear challenge to mandatory union fees, appear split →
