Facebook data has been used in elections before, but never like this. Cambridge Analytica consulted for the Trump campaign, but now lawmakers in the U.S. and the U.K. want to know how it grabbed more than 50 million Facebook profiles — monitoring and manipulating millions of voters before the 2016 election. | Want to support 1A? Give to your local public radio station at donate.npr.org/1A and subscribe to our podcast. Have questions? Email the show at firstname.lastname@example.org.
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