Ellen Nakashima is a national security reporter for The Washington Post. She covers issues relating to cybersecurity, surveillance, counterterrorism and intelligence. She has probed Russia’s efforts to influence the outcome of the 2016 presidential election and contacts between aides to President Trump and Russian officials. In 2014, she and her colleagues were awarded the Pulitzer Prize for Public Service for reporting on the hidden scope of government surveillance and its policy implications. Ms. Nakashima has also served as a Southeast Asia correspondent, and covered the White House and Virginia state politics. She joined the Post in 1995.