Advertising for political office is a never-ending campaign

The 2020 political advertising cycle was as turbulent as the election cycle itself, including the decision by Facebook, Google and Twitter to ban some or all political ads during key pre- and post-election stretches.

Once dubbed the "The Ultimate One Day Sale," political advertising has morphed into an unending campaign to persuade voters — no longer pegged to the first Tuesday in November but instead more of a weeks- or months-long affair.

Gary Waters/