It’s déjà vu for Latino business leaders, who warn that a controversial new effort by Republicans to target undocumented immigrants would weaken Arizona’s economy — just as an infamous 2010 “show me your papers” law brought an economic blow and national shame to the state. Republicans in the Arizona State Legislature have been working to put a measure on the November ballot that would require local governments to check a person’s immigration status before they could access public health care, housing assistance or employment programs…