Weeks after saying he would step back from politics to focus on his businesses, Elon Musk returned to bashing the GOP policy bill on social media. He also threatened once again to support primary challenges to lawmakers who vote for the bill. Ari Melber breaks it down on The Beat. 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/@