The Supreme Court rejects President Trump's effort to end birthright citizenship and upholds state bans on transgender athletes in girls' and women's sports in their final opinions of the term. Voters in Colorado head to the polls in another high-stakes primary race for progressive Democrats. British Ambassador Christian Turner joins Meet the Press NOW to discuss the European view of the U.S.-Iran negotiations prior to the upcoming NATO summit. For more context and news coverage of the most important stories of our day, click here: https://www.nbcnews.com » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Subscribe to Here's the Scoop podcast: https://www.nbcnews.com/heres-the-scoop-daily-podcast » NBC News App: https://apps.nbcnews.com/mobile » Breaking News Alerts: https://link.nbcnews.com/join/5cj/breaking-news-signup?cid=sm_npd_nn_yt_bn-clip_190621 » Visit NBCNews.Com: http://nbcnews.to/ReadNBC » Find NBC News on Facebook: http://nbcnews.to/LikeNBC » Follow NBC News on Twitter: http://nbcnews.to/FollowNBC » Follow NBC News on Instagram: http://nbcnews.to/InstaNBC #BreakingNews #News #politics