Democrat Alison Lundergan Grimes has picked up an endorsement from organized labor on the same day the Kentucky senator she wants to unseat is pushing a national right-to-work proposal opposed by unions.
The proposal being co-sponsored by Senate Minority Leader Mitch McConnell would prohibit requiring workers to pay union dues or fees.
Grimes received the Kentucky AFL-CIO's endorsement yesterday.
McConnell said his proposal would protect them from being forced to join.