... is the Sanders campaign breaking any laws by not responding?
I don't know the details of such things, that's why I'm asking. It seems logical that there would be some penalty (either criminal or fines) for non-compliance.
The FEC is enforcing actual LAWS, right? These aren't just "optional guidelines and suggestions" that campaigns are permitted to ignore because they're inconvenient, right?
The FEC's authority isn't based on some "honor system" among campaigns or the fear of being "publicly shamed" for willful non-compliance, right?
From my perspective (and I could be wrong) it appears that Bernie's campaign isn't taking this matter as seriously as does the FEC.