فهرست نشریات علمی دسترسی آزاد ایران

In the United States, social media platforms serve significant volumes of junk political news and informationduring important moments in political life—particularly elections. In this data memo, we examine the sources ofpolitical news and information that were shared by social media users in the period leading up to the 2018 USmidterms, evaluate the sources, and identify the primary audiences for content that is sensational, extremist,conspiratorial or that has other qualities of junk news. Analyzing 2.5 million tweets and 6,986 Facebook pagesover a 30-day period, we find that (1) the amount of junk news in circulation over social media is greater than itwas during the 2016 US presidential election, with users sharing more junk news than professional news overall,(2) junk news once consumed by President Trump’s support base and the far-right is now being consumed bymore mainstream conservative social media users, and that (3) less than five percent of the sources referenced onsocial media are from public agencies, experts, or the political candidates themselves.