I don’t follow wrestling so never gave it any thought. Didn’t he use Ventura as governor? I guess that’s why I never thought it might not be his real name. I remember Jimmy Carter had to get a legal OK to sign documents as Jimmy instead of James when he was President.
Federal law for a president might be different from Minnesota state law, which allows the use of a customary pseudonym unless there is an attempt to conceal real identity.
If he has a driver’s license and passport, they likely read James George Janos, as will he soon-to-be-arriving Social Security check.
Not really a big deal, as it is a simple process to make a legal name change. He just never appears to have done it.