From the article:

> Update: It wasn’t clear if issue ads and PAC ads were counted in Facebook’s 0.5% figure, but now the company says that number is just for ads run directly by politicians.]

I'm more curious what % of Facebook's ad revenue was from political ads for each of the last few years. I believe Zuckerberg stated during his most recent congressional testimony that it was a single-digit percentage of total ad revenue, but I could be misremembering.