Here is an ad by My Pillow's Mike Lindell that he reportedly cannot buy time for on television. It promotes a symposium taking place August 10-12.
Occasionally, ads are rejected. I'm sure there are examples of liberal causes being rejected, but the ones I know of are all pro-Trump or conservative ads.
We'd be better off from an information perspective to not censor anything except that which is illegal or, for example, if an ad showed extremely graphic visuals. That way, no "minders" with special interests get between us and our information.
As it stands, starting in about 2016, we have allowed all kinds of corporations and political interests to dictate what we can read, see, think, and believe.
— David A Nelson (@TheDavidANelson) July 30, 2021