Lawyers, teachers and politicians were among thousands of demonstrators across the U.S. on Thursday protesting policies on immigration, the targeting of lawyers and judges and the role of wealthy decision-makers under President Donald Trump's administration.

The mass demonstrations occurred on a day that historically has been the province of a variety of causes. May 1 is “Loyalty Day” in the United States, first proclaimed during the administration of President Dwight D. Eisenhower in the 1950s at the peak of “Red Scare” and Cold War era.