Some estimates are as high as 75% contribution, co pay or coverage of employees health care costs.

http://www.californiahealthline.org/articles/...

Some are trying to justify the federal congressional health plan comparing it to a private employer plan. But who is the employer of congress and staff? The Federal Government ie the tax payer. If the plan is set up that you get reimbursed or 75% of cost covered that is a federal subsidy the health plan wether you call it an "employer contribution" or subsidy.