In Providence, Rhode Island, about the same number of people gathered at Burnside Park before a two-hour protest that touched on deportation, profiling and wage theft. They then headed to Wells Fargo, where they unfurled a banner reading "Your profits, our pain", blocking doors there as well. And they sparked at least four arrests after creating a human chain to block a county building in Oakland, Calif., where demonstrators demanded that county law enforcement refuse to collaborate with federal immigration agents.
Among some of the many events slated to take place in Chicago for the first of the month, the Chicago Teachers Union will hold a rally at Seward Elementary School on the city's South Side to protest a lack of state funding.
Mayor Bill de Blasio and other city officials were to speak at the rally. "Last year, even though immigrants were 13% of the population, they started 20% of new businesses, and that's a huge thing". It was a citywide spectacle and just a taste of what's to come later this week, when the president himself comes home for a visit. "We are saying that is not going to be acceptable".
There are similar examples to support the theory that high-skilled immigrants benefit the economy and native-born workers. They filled streets in downtown Chicago. "We're being shutdown, we are not able to speak our minds", said Maxwell Hare, a Trump supporter.
In addition to rallies, immigrant rights activists in Indiana, Massachusetts and Texas are calling for strikes to show Americans the demand for immigrant labor and immigrants' purchasing power. One activist wondered if anyone was listening to him.
May Day, also known as International Workers' Day, has typically been a quieter affair in the United States than in Europe, where it is a public holiday in many countries.
Immigrant and union groups in New York City are gathering in a few parks ahead of a May Day march planned for Monday evening.
Labour unions and civil rights groups staged May Day rallies across the United States on Monday, challenging President Donald Trump's immigration policies and his vow to step up deportations of those who entered the country illegally.
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In recent years, immigrant rights protests shrank as groups diverged and shifted their focus on voter registration and lobbying, but larger crowds returned this year, prompted by Mr Trump's presidency.
Organizers say tens of thousands are expected to march downtown to City Hall on Monday after groups that held separate May 1 events in the past joined together this year.
Kathleen Takata, a retired consultant, had never marched on May Day before but felt compelled to do so against Trump's plans for a border wall on the U.S-Mexico border and travel ban against people from certain countries.
Back in 2006 when there were massive immigrants rights protests here and in Los Angeles in response to anti-immigrant legislation in Congress on May Day. Others, such as his vow to withhold federal funds from "sanctuary cities" that protect immigrants, are facing legal challenges.
The day will include a migrant's strike across the U.S., in an action reminiscent of February's Day Without Immigrants protests, which saw businesses across the USA close for a day.
Attorney General Jeff Sessions - an immigration hardliner and one of Trump's earliest surrogates - reiterated Trump's position in March, saying that the United States would not go after immigrants with clean records. In Homestead, Fla., immigrant farmworkers went on strike for the day.
Mahoma Lopez, who arrived from Mexico 20 years ago, said he's fighting for the rights of other immigrants, many of whom are anxious about Trump's policies.