Donie O'Sullivan

Donie O’Sullivan is a CNN correspondent covering the intersection of politics and technology who primarily focuses on the real-world effects of online misinformation and the role it plays in American politics.

In the months leading up to the 2020 U.S. presidential election, O'Sullivan traveled the country reporting on the role conspiracy theories were playing in voters’ attitude to the election and to the country’s response to the Covid-19 pandemic. He also reported live from outside the U.S. Capitol during the insurrection on January, 6th, 2021. Earlier, he was part of the team that uncovered several major Russian government-linked social media campaigns targeting Americans in the run-up to the 2016 election. His work was later used by Congressional investigators and others examining the extent of Russian meddling.

O’Sullivan first joined the network in 2016 as a producer for CNN’s Social Discovery team, before taking on a role as a CNN Business reporter. Over the years, he has worked closely with CNN’s investigative unit tracking and identifying online disinformation campaigns targeting the American electorate, and has reported on how social media platforms, Congress, and the American intelligence community are responding to the threat of disinformation and troll campaigns.

O’Sullivan has been a prominent speaker at numerous national and international conferences, including the Council on Foreign Relations, the Aspen Institute and at a number of cybersecurity events, including DEF CON and the RSA Conference. Additionally, he received a 2020 Emmy Award nomination for Outstanding Live Interview as part of the producing team for Facebook’s Monika Bickert interview on "Anderson Cooper Full Circle."

Before joining CNN, O’Sullivan worked for Storyful, a social media verification news agency, in New York and Dublin, Ireland. He holds a master’s degree in political science from Queen’s University Belfast in Northern Ireland, and is a proud dual citizen of the United States and Ireland.