DETROIT (AP) – General Motors is switching sides in the legal fight against California’s right to set its own clean-air standards, abandoning the Trump administration as the president’s term nears its close. EO Mary Barra said in a letter Monday to environmental groups that GM will no longer support the Trump administration in its defense against a lawsuit over its efforts against California’s standards. And GM is urging other automakers to do the same. The move is a sign that GM and other automakers are anticipating big changes when President-elect Joe Biden takes office in January. Already at least one other large automaker, Toyota, said it may join GM in switching to California’s team.