In our news wrap Tuesday, Russian officials insisted Ukraine played a role in Friday's terror attack near Moscow, a Russian court extended the detention of American Evan Gershkovich through June, a British court blocked Wikileaks founder Julian Assange from being extradited to the U.S. for now and independent candidate Robert F. Kennedy Jr. announced Nicole Shanahan as his running mate. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: TikTok: https://www.tiktok.com/@pbsnews Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Facebook: http://www.pbs.org/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe