Wisconsin senator requests information on union ‘dues skimming’ from Medicaid Tim Stumm 7 years ago Sen. Ron Johnson, R-Wis., wants more information from the Centers for Medicare and Medicaid Services on states “skimming” union dues from Medicaid payments.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.