He went to school the next day and said me and my wife beat him and the school called the police.  We were arrested...

I did neither of those, my son vandalized school property and I spanked him on the butt and grounded him. He went to school the next day and said to me and my wife beat him and the school called the police. They questioned us, I told them what happened. They arrested us and charged us. He had no marks on him that I ever saw or were ever shown in court, I had a court-appointed lawyer who wants me to plead guilty that they would believe my son no matter what.

Gary Churak's Answer

Based on the facts you present do not plead guilty. Under Texas Law a parent has the absolute right to discipline their child including the use of reasonable force such as spanking. If there are no physical injuries and no bruises or marks on the child you have not committed a crime. Often CPS and the DA fail to realize that you are a parent and as such have the right to raise your children under your beliefs and principals within the boundaries of the law.
He went to school the next day and said me and my wife beat him and the school called the police.  We were arrested...