Large crowds rallied across the United States and parts of Europe on Saturday under the banner of “No Kings,” protesting the war in Iran and President Donald Trump’s policies, particularly on immigration.

Minnesota emerged as the focal point of the demonstrations, where thousands gathered at the State Capitol in St. Paul. The flagship rally featured musician Bruce Springsteen, who performed and addressed the crowd, praising public resistance to increased immigration enforcement.

Springsteen performed a song inspired by the fatal shootings of two individuals by federal agents and said the response from Minnesotans had given hope to others across the country.

Protests were reported in all 50 states, from major cities like New York to smaller towns in Idaho. Organisers said more than 3,100 events were registered nationwide, with millions expected to participate.

Most demonstrations remained peaceful, although clashes were reported in Los Angeles, where police used tear gas after protesters allegedly threw objects near a federal detention centre. Some arrests were also made.

Participants voiced a wide range of concerns, including the Iran conflict, immigration crackdowns, and civil rights issues. In Washington, demonstrators marched near the Lincoln Memorial chanting slogans and holding placards critical of the administration.

Republican officials dismissed the protests, with a White House spokesperson claiming they lacked broad public support.

Rallies were also held internationally, including in London, Rome and Paris, where hundreds gathered at the Bastille. Organisers said similar events took place in more than a dozen countries.

Speakers at the Minnesota rally included public figures, activists and politicians, all urging continued resistance and civic engagement. Organisers said the movement is drawing increasing participation beyond major urban centres, reflecting wider national momentum.