You might just be right there. I can find no FEC forms requiring certification, only registration and even then nothing really but a name on the form.
“I can find no FEC forms requiring certification”
reason u wont find it is cuz it is none of their business. The Presidential election is really 50 separate elections run by each of the 50 states. Ask the constitutionalists why that is so.
there is federal law on federal elections regarding $$$$ donations. Perhaps there was some barking and litigation on this at the time these laws were passed ... regarding constitutionality.
Also see first amendment regarding Freedom of Assembly ... and the political parties.