With signs such as "Nothing is more patriotic than protesting" or "Resist Fascism," in many places the events looked more like a street party. There were marching bands, a huge banner with the U.S. Constitution's "We The People" preamble that people could sign, and demonstrators wearing inflatable costumes, particularly frogs, which have emerged as a sign of resistance in Portland, Oregon.
Saturday's rally is the third mass mobilisation since Trump's return to the White House and comes against the backdrop of a government shutdown that not only has closed federal programmes and services, but is testing the core balance of power as an aggressive executive confronts Congress and the courts in ways that organisers warn are a slide towards US authoritarianism.