By Sam Baker - 08/16/13 02:22 PM EDT
The Affordable Coverage Project, which includes America's Health Insurance Plans, the U.S. Chamber of Commerce and the National Retail Federation, is pressing Congress to repeal the tax. The group has just recenrly launched its website
, along with the new round of online advertising.
Critics say the tax will not only hurt insurance companies, but also small businesses and state and local governments, some of whom will have to pay the tax because of the way they administer Medicaid.
— This post was updated at 11:24 a.m.