The conspiracy theory involving a fake news story that links Hillary Clinton and a D.C. pizza shop to a child exploitation ring has at least one prominent adherent linked to President-elect Donald Trump's transition team.
Michael Flynn Jr. is an adviser to his father, Michael Flynn, whom Trump selected to serve as national security adviser.
Flynn Jr. has made numerous posts on Twitter about the conspiracy theories of Pizzagate, a fake news story that suggests a pizza shop called Comet Ping Pong plays a key role in a child sex trafficking ring run by Clinton.
Police say the conspiracy theory led to violence Sunday when a North Carolina man fired a rifle in the restaurant as he sought to investigate the accusations. No one was injured, and the man was arrested.
Flynn Jr., who has accompanied his father to presidential transition meetings inside Trump Tower and lists the presidential transition website as part of his Twitter bio, tweeted Sunday night that, "Until #Pizzagate proven to be false, it'll remain a story."
Trump's team had no immediate response to questions about the conspiracy theory or the younger Flynn's role in the presidential transition.
Vice President-elect Mike Pence said on MSNBC Tuesday that Flynn Jr. "has no involvement in the transition whatsoever."