The Arizona ad, paid for by The Committee to Defend the President, is one of roughly two dozen such ads that two pro-Trump super PACs have purchased on Facebook over the past five months, according to an analysis of Facebook’s advertising archive by The Washington Post. Some of the ads falsely suggest that Democrats are purging voter rolls; others direct viewers to some version of a voter-registration form, but only after they submit information, such as their names, email addresses and political affiliations.
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