ARIZONA'S SB 1070
Arizona’s anti-immigrant law, S.B. 1070, allows police to determine the immigration status of someone arrested or detained when there is “reasonable suspicion” they are not in the U.S. legally. The law invite rampant racial profiling against Latinos, Asian-Americans and others presumed to be "foreign" based on how they look or sound. Also authorize police to demand papers proving citizenship or immigration status from anyone they stop and suspect of being in the country unlawfully. It's basically "stop and show me your papers".
Obama’s Immigration Executive Order
In 2014, Obama outlined how he was going to give many Immigrants a pathway into becoming a Citizen like for childhood arrivals unlawful immigrants who come to the US when they were under the age of 16, since June 2007, were under 31 years of age as of June 2012, that hadn't not convicted criminals, and who were either high school graduates were eligible for a two-year work permit under the Code of Federal Regulations. immigrants were could use this pathway although only 675,000 have been given it (40%)