Are New Laws Required to Prevent Future Coups?

I hear this a lot. While I’m not a lawyer, I’m familiar with various bits and pieces of the U.S. Criminal Code that appear to work very well here, even without any changes or additions: sedition, conspiracy against the United States, seditious conspiracy, election tampering, witness intimidation, incitement of violence, manslaughter, and treason.
Could further laws make this even more airtight? Perhaps.
