Reddit is one of the oldest surviving popular discussion fora on the internet. There is naturally a subreddit about Reddit ads.
These datasets are collected by the script Woodpecker.
Each zip file contains JSON files with all ads classified as “political and issue ads,” on Reddit in all countries where ad transparency measures are available.
Data is archived in the form of a historical take collected on xx-yy-zzzz, and month-wise daily collection in the respective folders.
For more information on the scripts and the datasets, see here.