Breitbart News Network (known commonly as Breitbart News, Breitbart or Breitbart.com) is a far-right syndicated American news, opinion and commentary website founded in mid-2007 by conservative commentator Andrew Breitbart, who conceived it as "the Huffington Post of the right." Its journalists are widely considered to be ideologically driven, and some of its content has been called misogynistic, xenophobic, and racist by liberals and many traditional conservatives alike. The site has published a number of lies, conspiracy theories, and intentionally misleading stories.
Citations:
Jessica Roy (November 14, 2016). "What is the alt-right? A refresher course on Steve Bannon's fringe brand of conservatism". Los Angeles Times. ISSN 0458-3035. Under Bannon's leadership, Breitbart published ... articles regurgitating conspiracy theories about Hillary Clinton and her staff."
Ken Thomas; Catherine Lucey; Julie Pace (November 17, 2016). "Trump picks national security adviser". Associated Press. Bannon's news website has peddled conspiracy theories"
Benjy Sarlin (November 14, 2016). "Analysis: Breitbart's Steve Bannon leads the 'alt right' to the White House". NBC News. [A] major question moving forward will be how the Breitbart wing gets along with more traditional Republican leaders uncomfortable with its emphasis on race-baiting headlines and conspiracy theories."
Gregory Krieg (August 22, 2016). "The new birthers: Debunking the Hillary Clinton health conspiracy". CNN. Breitbart News ... has also been among the most consistent and highly trafficked peddlers of the conspiracy theories surrounding Clinton's health."
https://en.wikipedia.org/wiki/Breitbart_News