Walmart – the nation’s largest private employer – warned of possible price hikes on Thursday given the uncertainty in the tariff environment.  "We will do our best to keep our prices as low as possible but given the magnitude of the tariffs, even at the reduced levels announced this week, we aren’t able to absorb all the pressure given the reality of narrow retail margins," Walmart CEO Doug McMillon said in a statement as the retailer reported its first quarter results, which met Wall Street expectations. C ...