It depends on where you live. Some regions have a limited list of acceptable names, some places just have limited lists of unacceptable names, but I can’t find anywhere that explicitly bans Null.

It does suck to be named Null, though. It’s like two steps down from not being given a social security number as an infant

The fact that he even tried it should be grounds for removal from office. He swore an oath to uphold the Constitution, and he has blatantly and openly violated it