If you read the sentence before the one you very selectively quoted, or even just completed the very sentence you quoted, it becomes clear the sentence is talking about the US presidential election, not the German one: "That’s a paltry sum for Facebook co-founder Mark Zuckerberg, who finds himself in the greatest crisis of his career over the company’s role in Russia’s meddling with the U.S. election. While the Russian episode involved ads bought under false identities by people with Kremlin ties, the AfD campaign was completely different—the party literally walked through Facebook’s front door and introduced itself, a strategy Harris Media intends to repeat."