From NPR.org — 

Medicaid home care aides — hourly workers who help elderly and disabled people with daily tasks like eating, getting dressed and bathing — are emerging as the latest target in the ongoing power struggle between some conservative lawmakers and organized labor.

About half a million of these home workers belong to the Service Employees International Union, a public-sector union that represents almost 1.9 million workers in the United States and Canada. The union is an influential donor to some Democratic campaigns and boasted strong ties to the Obama administration.