Disconnect

Personally, I don't see the connection between supporting the police as an institution, especially as they are currently implemented in the modern United States, and supporting democracy. Especially given that it's not really the job of state and local police forces to do a lot of the work that people say "protects" democracy. If one looks at the Bill of Rights, or any other provision of or amendment to the Constitution, none of them are in the purview of what people normally think of as "the police." If Congress passes a law restricting, say, freedom of religion, the Washington, D. C. police department are not going to arrest them and haul them off to jail.

The fine print along the left hand side of the sign is an exhortation to free speech at the top, and the state laws that govern defacing or removing political advertising at the bottom. There is also a bit that reads "Placed by 'I support democracy' society." A secret society for certain, given that it appears to have no web presence.