Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: Following Donald Trump's rally in Costa Mesa, California, Thursday night, hundreds of protesters lined the streets, blocking cars leaving the OC Fair & Event Center, while others jumped on police cars. 
  
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 The Orange County Sheriff's Department said about 20 people were arrested, and there were no major injuries. There were nearly 200 officers outside the Trump rally, according to the Sheriff's Department. 
  
 #OCSDPIO Post Trump Rally Protest over. Approx 20 arrests by Costa Mesa PD. No major injuries. Crowd dispersed by 11pm. No further updates — OC Sheriff, CA (@OCSD) April 29, 2016 
  
 Chris Carlson/AP 
  
 The protesters were met with police in riot gear and others mounted on horseback. 
  
 Protesters jumped on police cars and other vehicles, and tossed water bottles and other objects at the police. At least one police car was damaged by the protesters. Protesters were also filmed trying to flip over a police car. 
  
 Protesters attempt to flip cop car outside Donald Trump rally in Orange County: WATCH #LIVE https://t.co/u5lTveArpyhttps://t.co/8nyDi9sy2N — ABC7 Eyewitness News (@ABC7) April 29, 2016 
  
 BREAKING: Police car bashed in by Trump protesters as police line closes in on wild crowd. @ABC7 pic.twitter.com/RggV4hWwup — Chelsea Edwards (@abc7chelsea) April 29, 2016 
  
 Massive crowd of protesters remain outside Trump event. Streets closed. Cops in riot gear and mounted on horses. pic.twitter.com/c3IiuWqNmj — John Santucci (@JTSantucci) April 29, 2016 
  
 Currently, police officers are working to disperse the crowd. 
  
 Trump rally #peacefulprotest A video posted by Christian Hurtado (@l3vitated) on Apr 28, 2016 at 9:20pm PDT 
  
 Rebeca Olguin, a Bernie Sanders supporter who was at the scene and posted a video of the mayhem on Instagram, told ABC News she came to protest Trump and his campaign. 
  
 "There were some who were peacefully protesting while others were being more open about sharing their opinions," she wrote in an e-mail to ABC News. 
  
 #feelthebern A video posted by Rebeca ? (@bec_uuh) on Apr 28, 2016 at 8:22pm PDT 
  
 Before the event started, the venue closed once it had reached capacity and individuals were trying to jump the fence to get in. They were escorted outside the gate. 
  
 The rally -- which attracted 18,000 supporters and was held in advance of the state's June 7 primary -- opened with families of people killed by undocumented workers from the Remembrance Project. They joined Trump on stage, as they have at previous rallies. "Trump is here to save us all,” said Jamiel Shaw, Sr., whose son Jamiel Shaw, Jr., was killed in 2008 when he was 17. Trump in turn took back the microphone and vowed to “Build the Wall." 
  
 Trump also took aim at his GOP rival Ted Cruz, and his newly-announced running mate, Carly Fiorina. 
  
 "[Cruz] will get an award...for the first time in the history of American politics, a man who is totally mathematically dead, has appointed a Vice President,” Trump said, later adding that Senator Cruz is “one lyin’ son of a gun.” 
  
 As for Democratic presidential front-runner Hillary Clinton, Trump said, “She’s there shouting all night long with reading from teleprompters. I’m sorta glad she won I wanna beat her more than Sanders.” 
  
 Trump will attend his first-ever state convention of the cycle Friday in California. His next rally is Sunday in Indiana. ||||| Play Facebook 
  
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 Police arrested 20 people outside a Donald Trump rally in California Thursday night amid the worst violence since last month’s cancelation of a campaign event in Chicago. 
  
 Hundreds of protesters blocked traffic in the streets surrounding the event in Costa Mesa, south of Los Angeles. A police car was smashed by a crowd. 
  
 Fights were seen breaking out and some chanted "Racists go home!" Others repeatedly yelled "Whose streets? Our streets!" as police moved to control the crowd. A car started doing donuts in the street amid the action. 
  
 Demonstrators outside Donald Trump's campaign rally in Costa Mesa, California, on Thursday night. MIKE BLAKE / Reuters 
  
 A police car was seen with smashed windows and a person was jumping up and down on top of the vehicle. Another person appeared to be writing on the cruiser, and others tried to flip the vehicle. 
  
 Protesters just wrecked this cop car. Bashed in windows, jumping on top of it. pic.twitter.com/bZ7vmg0lhW — Ali Vitali (@alivitali) April 29, 2016 
  
 Police on horses and other officers and deputies in riot gear set up skirmish lines to push protesters out of the streets, NBC Los Angeles reported. 
  
 There were no major injuries, the Orange County Sheriff’s Department said, adding that the crowd had dispersed by 11 p.m. local time (2 a.m. ET). 
  
 #OCSDPIO Post Trump Rally Protest over. Approx 20 arrests by Costa Mesa PD. No major injuries. Crowd dispersed by 11pm. No further updates — OC Sheriff, CA (@OCSD) April 29, 2016 
  
 Protests at Trump rallies have occasionally ended in clashes. In March, a planned Trump rally in Chicago descended into chaos, with fistfights breaking out between supporters and opponents of the controversial candidate. 
  
 PHOTOS: Trump Protesters Clash With Police Outside Rally 
  
 The clashes took place as Trump addresses a crowd of thousands, taking a swipe at opponents including Ted Cruz who he criticized for choosing a running mate despite his campaign being “totally mathematically dead.” 
  
 Jose Cruz, 21, told the Los Angeles Times that the protests reflected “the anger people have against Trump.” 
  
 #OCSDPIO Post Trump Rally Protest dissipating. Few people detained. Number of arrests still being determined — OC Sheriff, CA (@OCSD) April 29, 2016 
  
 However, Colby Nicholson, 30, who described himself as a Trump supporter, told the newspaper: "These are all underage Mexican high-schoolers who have nothing to do." ||||| A law enforcement officer stand in the street after a rally for Republican presidential candidate Donald Trump, Thursday, April 28, 2016 in Costa Mesa, Calif. (AP Photo/Chris Carlson) (Associated Press) 
  
 A law enforcement officer stand in the street after a rally for Republican presidential candidate Donald Trump, Thursday, April 28, 2016 in Costa Mesa, Calif. (AP Photo/Chris Carlson) (Associated Press) 
  
 COSTA MESA, Calif. (AP) — Raucous crowds of protesters took to the streets late Thursday in California as Donald Trump brought his Republican presidential campaign to conservative Orange County after sweeping the Northeast GOP primaries. 
  
 Dozens of protesters were mostly peaceful as Trump gave his speech inside the Pacific Amphitheater. After the event, however, the demonstration grew rowdy and spilled into the streets. 
  
 At least four people were arrested and one Trump supporter had his face bloodied in a scuffle as he tried to drive out of the arena. One man jumped on a police car, leaving its front and rear windows smashed and the top dented in and other protests sprayed graffiti on a police car and the venue's marquee. 
  
 Dozens of cars -- including those of Trump supporters trying to leave -- were stuck in the street as several hundred demonstrators blocked the road, waved Mexican flags and posed for selfies. 
  
 Police in riot gear and on horseback pushed the crowd back and away from the venue. There were no major injuries and police did not use any force.The crowd began dispersing about three hours after the speech ended. 
  
 Earlier in the evening, a half-dozen anti-Trump protesters taunted those waiting to get into the venue. Trump supporters surrounded one man who waved a Mexican flag and shouted "Build that wall! Build that wall!" -- a reference to Trump's call to create a barrier between the United States and Mexico to stop illegal border crossings. 
  
 At one point, seven women wearing no shirts and Bernie Sanders stickers over their breasts entered the square outside the amphitheater. They said they were protesting Trump's lack of engagement on issues of gender equality and women's rights. 
  
 "I feel like he wants to make America great again, but certainly not for women, for the LBGTQ community or for the lower class," said one of the women, Tiernan Hebron. "He has, like, done nothing to help with gender equality or women's rights or reproductive rights or anything." 
  
 Trump has drawn large crowds across the country as he has campaigned for the White House and some of his events have been marred by incidents both inside and outside these venues. 
  
 Earlier this week, a Trump rally in nearby Anaheim, California turned contentious when his supporters and counter protestors clashed, leaving several people struck by pepper spray. Trump was not present. 
  
 Trump has drawn large crowds to most of his campaign events, and Thursday was no exception. The Pacific Amphitheatre was filled to its capacity of about 18,000 and many hundreds more were turned away. 
  
 Ly Kou, 47, of Ontario, said she likes Trump because he has vowed to put the country first. 
  
 "It's obvious that America loves Trump," said Kou, who is from Laos, as she pointed at the waiting throng. "This thing about him being racist? Look around the crowd." 
  
 Trump was traveling from the rally site to the state's Republican convention in Burlington in the San Francisco Bay area. ||||| Add this Tweet to your website by copying the code below. Gehiago jakin 
  
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 Aurreikusi ||||| "Rallies that take to the streets are usually led by a group, and are not wild and all over the place like tonight," said Villanueva, a member of Chicanos Unidos in Santa Ana, an organization that was part of the anti-Trump demonstrations. |||||
Student:
Donald Trump came to California on Thursday night and chaos soon followed. In what NBC News reports was the worst Trump-related violence since a canceled rally in Chicago last month, around 20 people were arrested after violent protests erupted outside a rally in Costa Mesa, Orange County. Hundreds of protesters, some carrying American and Mexican flags as well as anti-Trump signs, walked on a roadway, threw rocks at vehicles, and smashed the windows of a police cruiser, the Los Angeles Times reports. Police tweeted that there were no major injuries and the crowd was dispersed by 11pm, more than two hours after the rally ended. A capacity crowd of 18,000 people packed the rally at the OC Fair and Event Center, and after the venue filled up, Trump supporters could be seen jumping fences to try to get in, ABC News reports. Many of those who couldn't get in remained outside the venue, exchanging insults with protesters. The AP reports that the protests outside were largely peaceful until the end of the rally, and seven topless women with Bernie Sanders stickers over their breasts were among the anti-Trump demonstrators. "I feel like he wants to make America great again, but certainly not for women, for the LBGTQ community, or for the lower class," said one of the women.