Will Sommer was one of the first reporters to write about Pizzagate, the conspiracy theory that a DC pizza parlor was the home of a child sex ring. After a man was arrested for firing a gun inside the restaurant, his reporting gained national relevance. Shortly afterward, he launched Right Richter, and he soon became one of the foremost experts on the obscure right wing media outlets that, in some cases, produce conspiracies that bubble all the way up to Donald Trump’s Twitter account.