GM, Toyota, FCA back Trump on California emissions standoff

General Motors Co , Toyota Motor Corp , Hyundai Motor Co , Fiat Chrysler Automobiles NV and other major automakers are siding with the Trump administration in its bid to bar California from setting its own fuel efficiency rules or zero-emission vehicles requirements. The automakers announced on Monday they were filing to intervene on behalf of the Trump administration after California and 22 other states sued in September to undo the Trump administration’s det