Why are you providing advertising transparency for political ads shown through Google?

What ads are included?

Why am I not able to find a specific political advertiser?

Why am I not able to find a particular ad I’ve seen elsewhere?

Why do some ads display the message “Sorry, we’re not able to show you this ad”?

Why are some advertisers mentioned multiple times in the Top Advertiser table?

Why do I see ads that are paid for by multiple advertisers?

For the EU, why do some advertisers appear in multiple countries?

Where can I see additional disclosures for California political ads?

How was the data modified after the United Kingdom exited the European Union?

What criteria can advertisers select to reach their intended audience for election ads?

What does “Number of times shown” or “impressions” mean?

How is the exchange rate determined for local currencies?

How is total spending determined for a country or region?

Why might historical data change over time?

Why have some ads been labeled with a “Policy Violation”?

When does information about an ad get published?

Is there an API for the ads, or can I download specific ads or a subset of ads?

Why don’t the ad spend numbers add up to the totals in some cases?

Why are ads shown in the United Kingdom not included on the European Union page?

What changes were made between the old version of this site and the new one?

How is United States Congressional redistricting handled?