The plan for a day of mass demonstrations follows a series of violent incidents. Anti-Musk activists have been accused of throwing Molotov cocktails at Tesla facilities in Colorado, Nevada and Oregon and defacing Tesla vehicles there, and on Monday, authorities said they found multiple “ incendiary devices ” at a Tesla location in Texas.

At a rally in Los Angeles, 65-year-old Phil Ansell said he wanted to participate because "I want to do everything possible to protect democracy in this country."