Members of the auto workers say their union is fighting for workers' democratic rights, including the right to break away from foreign-controlled unions.
Unions, once politically powerful institutions fighting for workers' share, became weaker and weaker.
Rebecca Cornick, 61, said she had to be in Times Square to keep fighting for workers across the US.
"In addition to fighting for workers' rights, we are fighting for our dignity this time around, our self-respect," said Jorge-Mario Cabrera, a spokesman for the Coalition for Humane Immigrant Rights of Los Angeles.
"The government is done fighting the workers and now we're going to help them," Energy Secretary Bill Richardson said in a statement.
Trump, announcing Puzder's nomination, in December, said that his "extensive record fighting for workers makes him the ideal candidate to lead the Department of Labor".
But the city has, at the same time, been fighting the workers in court, arguing, among other things, that it is immune from damages in cases involving a civil defense disaster or a national emergency.
Speakers at the rally in Hyde Park noted that Dr. King was killed while fighting for workers' rights and derided Wal-Mart's unwillingness to negotiate with its critics, according to a news release from Good Jobs Chicago.
An active, modern Solidarity union, with members fighting for workers' rights, is considered merely a usurper's class of union, with unionists considered to be protesting merely to "gain profits for themselves", as an editorial at Gazeta Wyborcza put it.
Vamp works with doctors, the police and the local authorities to combat stigma and violence, offering support and care to people with HIV and orphaned children, and fighting for workers and their families to be treated with dignity.
