Forced to pay child support for children that are not biologically yours?

[Jeff OTMG]

I helped develop and maintain the Child Support Enforcement Systems for the Office of Attorney General in both Texas and Guam. The system development was mandated and funded by the federal govt back in the early 90's. All states and territories are currently online and report monthly to the U.S. Attorney General to keep the info current. One of the 'rules' of the implementation was that once the father, always the father. If a man allows his name to be placed on the birth certificate, or declares himself to be the father and it is accepted by the court, then that man will always be considered the father and is liable for the mandates of the child support order. I don't agree with it if the man was deceived into believing that he was the father, but that is the law. I always wondered if the guy could sue his ex-wife for breech of (marital) contract damages in the amount of the support order.