May Day protesters march with a giant inflatable Trump effigy holding a Ku Klux Klan mask in Los Angeles

People marched with an inflatable effigy of Republican presidential candidate Donald Trump during one of three  May Day rallies
    Rallies were held on Sunday in Los Angeles to protest Donald Trump
    The three separate May Day marches championed a series of causes including a pro-immigration stances and workers' rights
    An effigy of Donald Trump holding a KKK mask was carried in one march
    On Friday Trump had to sneak in the back of a hotel in a San Francisco suburb due to swarms of demonstrators protesting his speech

Hundreds of people marchedthrough Los Angeles on Sunday in May Day rallies that took aimat Republican presidential front-runner Donald Trump.

The protesters took issue with Trump'scampaign vow to build a wall along the U.S. border with Mexicoto stop illegal immigration.

The rallies - in a city with a large immigrant population - comejust days after protesters smashed the window of a police carand blocked traffic in chaotic scenes outside a Trump campaignevent in Costa Mesa, California, 40 miles southeast of Los Angeles.
Marching for a cause: The rallies championed a number of causes including pro-immigrant stances and workers' rights   Members of the crowd carried a large blow-up doll of Trump holding a Ku Klux Klan hood and signs that read: 'Dump Trump'
On Friday, demonstrators who blocked the entrance of a hotelhosting the California Republican convention in Burlingame,south of San Francisco, forced Trump to halt his motorcade andgo through a back entrance to deliver his speech.

Three separate marches were planned in Los Angeles on Sundayand began peacefully around noon, with several hundred peoplechampioning a variety of causes, including immigrant and workerrights.

But members of the boisterous crowd also carried a largeblow-up doll of Trump holding a Ku Klux Klan hood and signs thatread: 'Dump Trump'.

Protests have become common outside rallies for Trump, 69,the New York billionaire businessman.

Lauren Wolfer holds a sign before Republican presidential candidate Donald Trump speaks during a campaign stop at the Allen County War Memorial Coliseum 
He has aroused criticism for his pledge to deport all the country's illegal immigrants,even as it helped propel him in the race for the Republican nomination for the November 8 election to succeed Democratic President Barack Obama.

He has accused Mexico of sending drug dealers and rapists across the U.S. border and has promised to build a wall along the southern border and make Mexico pay for it.

Trump said on Sunday he will have essentially sealed the Republican nomination if he wins Tuesday's contest in Indiana,where he holds a big lead over chief rival Ted Cruz, a U.S.senator from Texas.

California holds its presidential primary on June 7.
Trump spoke in Indiana on Sunday, May 1, while the protests and rallies went on in California against his campaign 

Credit: DailyMail