LIVE: White House briefs ahead of Trump's announcement about autism

Watch live coverage as White House Press Secretary Karoline Leavitt holds a press briefing after President Trump teased to a major announcement today on his administration's findings on autism in remarks at Charlie Kirk's memorial service in Arizona on Sunday. 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 MSNBC on Ins ...