This is incorrect to my knowledge. The free pass to spam political email was an explicit carve out in the can spam act, which lets them not comply with the same regulations everyone else has to. What you’re talking about is something much more recent, about what Google does on the receiving side of email with their spam filters. That was about Google’s compliance with an order from the federal election commission because their spam filters had biases that act like campaign financing. Google’s solution had bipartisan support among the commissioners as I recall.