Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. GM Flips to California's Side in Pollution Fight With Trump Associated Press DETROIT - General Motors says it will no longer support the Trump administration in legal efforts to end California's right to set its own clean-air standards. CEO Mary Barra said in a letter Monday to environmental groups that GM will pull out of the lawsuit, and it urges other automakers to do so. .