S&P 500 rises slightly following Trump tariff plans; Amgen weighs on Dow: Live updates CNBCTrump ups the ante on tariffs, vowing massive taxes on goods from Mexico, Canada and China on Day 1 CNNMexico's president would impose retaliatory tariffs in response to Trump's plan AxiosTrump’s Tariffs Would Deal a Big Blow to the Auto Industry The New York TimesMexico suggests it would impose its own tariffs to retaliate against any Trump tariffs The Associated Press