los angeles hundreds people march los angeles sunday may day rally take aim republican presidential front-runner donald trump anti-illegal immigration platform include build wall along u.s. border mexico demonstration america second populous city large immigrant population come days protesters smash window police car block traffic outside trump campaign event costa mesa california 40 miles 64 km southeast los angeles friday demonstrators block entrance hotel host california republican convention burlingame south san francisco force trump halt motorcade go back entrance deliver speech rally los angeles remain peaceful draw small crowd past may day demonstrations city several hundred people march downtown one point largely disperse midafternoon members crowd carry large blow-up effigy trump hold ku klux klan hood along sign read dump trump threaten become president unite state first 18 months office fully intend deport 11 million-plus undocumented persons unite state take lightly say juan jose gutierrez full right immigrants coalition others wave mexican u.s. flag sign call immigration reform end deportations los angeles police department spokeswoman say arrest make report violence protest become common outside rally trump 69 new york billionaire businessman arouse criticism pledge deport illegal immigrants even help propel race republican nomination nov. election succeed democratic president barack obama accuse mexico send drug dealers rapists unite state promise build wall along southern border make mexico pay trump say sunday essentially seal republican nomination win tuesday contest indiana hold big lead chief rival ted cruz u.s. senator texas california hold presidential primary june 7. may day rally los angeles feature strong anti-trump theme