The demonstrations were organized by a loose-knit coalition calling itself50501 short for 50 protests.

The billionaire mega-donor Musk, even more than Trump himself, was the primary target of demonstrators ire.

Ho, ho.Elon Musk has got to go!

Demonstrators hold signs and march as they rally against US President Donald Trump and his policies during a protest in Boston Common on Presidents' Day on February 17, 2025, in Boston, Massachusetts. (Photo by Joseph Prezioso / AFP) (Photo by JOSEPH PREZIOSO/AFP via Getty Images)

Protesters in Boston Common on Presidents’ DayAFP via Getty Images

Hey Congress, the protesters chanted: Grow a spine!