Trump says Greta Thunberg needs anger management, walks back L.A. insurrection claim

President Trump took questions before an "Invest America" event at the White House. Mr. Trump commented on reports of activist Greta Thunberg's detention while she was headed to Gaza to distribute aid. Also, Mr. Trump commented on allegations of Elon Musk's drug use while working for the White House, and he clarified comments about protests in Los Angeles as criticism grows over his decision to activate the National Guard.