White House Press Secretary Karoline Leavitt said to Fox News that participants and the Democratic Party's main constituents were "made up of Hamas terrorists, illegal aliens, and violent criminals".[41]

The October 18, 2025, protests followed the No Kings protests in June, the Free America Weekend on July 4, and the Good Trouble Lives On protest on July 17. About 200 organizations worked together to organize the October protests, including 50501 and Indivisible groups, as well as the American Civil Liberties Union (ACLU), the Democratic Socialists of America, the American Federation of Teachers, Common Defense, the Human Rights Campaign, Planned Parenthood Federation of America, Autistic Self Advocacy Network (ASAN), the League of Conservation Voters, MoveOn, Public Citizen, United We Dream, and Working Families Power.[19][20] Other organizers included Third Act Movement, Party for Socialism and Liberation, Social Security Works, Communications Workers of America, Freedom From Religion Foundation, New York Civil Liberties Union, League of Women Voters and American Federation of Government Employees.

Outside the United States, protests were organized by Democrats Abroad. Various groups organized protests in the UK, including the Stop Trump Coalition.[

Organizers were "adamant that the rallies remain peaceful",[29] according to USA Today, and held virtual safety trainings ahead of the protests with help from the ACLU.