The Latest: Volkswagen warns tariffs could start trade war

A man walks past an electronic stock board showing Japan's Nikkei 225 index at a securities firm in Tokyo Friday, June 1, 2018. Shares were mostly higher in Asia on Friday after U.S. stocks slid amid mounting trade tensions. U.S. benchmarks fell after the Trump administration said it is imposing tariffs on steel and aluminum imported from Europe, Canada and Mexico. (AP Photo/Eugene Hoshiko)
Shoppers wait in line at a Sam's Club in Mexico City, Thursday, May 31, 2018. The Trump administration announced Thursday it will impose tariffs on steel and aluminum imports from Europe, Mexico and Canada after failing to win concessions from the American allies. Mexico retaliated quickly saying it would penalize U.S. imports including pork bellies, apples, grapes, cheeses and flat steel. (AP Photo/Marco Ugarte)

The Latest: Volkswagen warns tariffs could start trade war

A man walks past an electronic stock board showing Japan's Nikkei 225 index at a securities firm in Tokyo Friday, June 1, 2018. Shares were mostly higher in Asia on Friday after U.S. stocks slid amid mounting trade tensions. U.S. benchmarks fell after the Trump administration said it is imposing tariffs on steel and aluminum imported from Europe, Canada and Mexico. (AP Photo/Eugene Hoshiko)
Shoppers wait in line at a Sam's Club in Mexico City, Thursday, May 31, 2018. The Trump administration announced Thursday it will impose tariffs on steel and aluminum imports from Europe, Mexico and Canada after failing to win concessions from the American allies. Mexico retaliated quickly saying it would penalize U.S. imports including pork bellies, apples, grapes, cheeses and flat steel. (AP Photo/Marco Ugarte)