Facebook, Twitter and Google failed to protect the 2016 election. Now they want to prove they've learned their lesson

For the past four years, tech giants including Facebook, Google and Twitter have invested massively in beefing up their election security efforts — creating new rules for political advertisers, hiring thousands of content moderators and building ties with law enforcement. The aim has been to avoid a repeat of the 2016 campaign, which was marred by foreign meddling and highlighted how woefully unprepared social media companies were for an attack on US democracy leveraging their platforms.

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