Arrest them.
This letter places the DOJ “monitors” in direct jeopardy for such an arrest.
There is a constitutionally elected Law Enforcement group (county sheriff) that can be called by \anyone\ in the county observing a breach of the law.
And, just in case one or more of them decide to “let it slide”, the Florida Constitution gives the Governor the duty to remove them (sheriff) from office for willfully ignoring the law.
This letter just ratchets that up to “willfully and knowingly”.
Always a consideration when assessing prison time.
arrest those unauthorized persons interfering with the election process
Put Sheriff Grady Judd in charge of a task force to arrest the Fed Folks.
... and if they resist, kill them just like you would one of the plebes.