No declaration is required.
Then why does the document exist? What is its purpose? Together with your birth certificate the CRBA iss part of your ID if you want to do certain things in the US. (like be a Senator)
Concerning his parents: his Communist father, with the JFK assassination connection, and his hippie-dippie mother committing voter fraud in Canada, it sounds like some pretty shaky assertions concerning his beginnings, and his citizenship status.