Today, the Supreme Court heard oral arguments over the Trump administration's plan to radically reinterpret birthright citizenship — and whether district court judges have the authority to block his orders. Mark Joseph Stern joins The 11th Hour to discuss. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.com/ » Subscribe to MSNBC: https://www.youtube.com/msnbc » Subscribe to MSNBC on TikTok https://www.tiktok.com/@msnbc » Subscribe to