How are political ads regulated on social platforms?
Inconsistently — through a patchwork of platform policies and national law that varies enormously by country, and in many places the rules governing political advertising online are considerably weaker than those governing it on television.
Why online political advertising is treated differently. Broadcast rules in many countries impose strict controls, including outright bans on paid political advertising on television. Those rules were written for broadcast and do not automatically extend to online platforms, which is the origin of the gap.
What platforms generally require, where they allow it at all:
Advertiser verification, confirming identity and location.
"Paid for by" disclaimers on the ad itself.
An ad library, publicly listing political ads, who paid, roughly how much was spent and who was targeted. These libraries are the main transparency mechanism, and researchers consistently find them incomplete and hard to use.
Targeting restrictions, with several platforms limiting the targeting criteria available for political ads.
Outright bans, which some platforms have adopted and others have reversed.
Why enforcement is weak:
Defining "political" is genuinely hard. Issue advertising — on immigration, climate, health — may be political in effect without naming a candidate, and definitions differ between platforms.
Influencer content is frequently outside the rules, because a paid post by a creator may not be classified as an ad at all, and this is a substantial and growing gap.
Cross-border spending is difficult to police.
Micro-targeting makes public scrutiny impossible in the way a television advert allows — if only a narrow group sees a message, nobody else can contest it.
Where the law is catching up. The EU has introduced a dedicated regime on transparency and targeting in political advertising, and several countries have imposed imprint requirements obliging digital campaign material to say who is behind it. Election-period rules, spending limits and foreign-funding prohibitions apply in many jurisdictions regardless of medium.
What you can do as a reader: check the ad library, look for the imprint, and treat unattributed campaign content as suspect.