US President Barack Obama speaks during a campaign concert at the Nokia Theater, on October 7, in Los Angeles. Obama is on a three-day trip where he will campaign in California and Ohio as well as ... more 

US President Barack Obama speaks during a campaign concert at the Nokia Theater, on October 7, in Los Angeles. Obama is on a three-day trip where he will campaign in California and Ohio as well as attend the establishment of the Cesar Chavez National Monument less