Walmart, Delta Air Lines warn of sales volatility, slower growth

Walmart has pulled its guidance for operating income in the first quarter, while Delta Air Lines cut its growth plans amid the escalation of President Donald Trump's trade war. As the largest private employer in the U.S. and a dominant force in retail, Walmart, alongside Delta, the nation’s most profitable airline, offers key insight into consumer confidence.Walmart announced on Wednesday that the "range of outcomes for Q1 operating income growth has widened due to less favorable category mix, higher casual ...