By ALEXANDRA OLSON and CATHY BUSSEWITZ NEW YORK (AP) — Walmart’s sweeping rollback of its diversity policies is the strongest indication yet of a profound shift taking hold at U.S. companies that are revaluating the legal and political risks associated with bold programs to bolster historically underrepresented groups in business. The changes announced by the world’s biggest retailer followed a string of legal victories by conservative groups that have filed an onslaught of lawsuits challenging corporate and federal programs aimed at elevating minority and women-owned businesses and employees. The risk associated with some of programs crystalized with the election of former President Donald Trump, whose administration is certain to make dismantling diversity, equity and inclusion programs a priority.