GM Profit Shrinks After $1.1 Billion Tariff Hit The Wall Street JournalG.M. Profit Shrinks on Billion-Dollar Tariff Hit The New York TimesGM says Trump tariffs knocked $1.1bn off its operating income last quarter The GuardianGeneral Motors takes $1.1 billion tariff hit, dinging profit and sending stock reeling MarketWatchGM Is Built to Weather This Policy Storm Bloomberg.com