Actuually, you don't even need to sue. Just file your taxes as if you are an employee and the IRS will handle the rest.
EDIT: See here: https://www.irs.gov/businesses/small-businesses-self-employe...
> You are not an independent contractor if you perform services that can be controlled by an employer (what will be done and how it will be done). This applies even if you are given freedom of action.