The march followed rallies on Friday that drew throngs of protesters to major cities around the nation.

On Saturday, demonstrators streamed into downtown Los Angeles for what was expected to be one of the city's largest pro-immigrant rallies. The crowd was estimated at more than 100,000, said police Sgt. Lee Sands.

Many of the marchers wore white shirts to symbolize peace and also waved U.S. flags. Some also carried the flags of Mexico and other countries, and even wore them as capes.

Elger Aloy, 26, of Riverside, a premed student, pushed a stroller with his 8-month-old son at Saturday's Los Angeles march.

"I think it's just inhumane. ... Everybody deserves the right to a better life," Aloy said of the legislation.

The House of Representatives has passed legislation that would make it a felony to be in the U.S. illegally, impose new penalties on employers who hire illegal immigrants and erect fences along one-third of the U.S.-Mexican border. The Senate is to begin debating the proposals on Tuesday.

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