Trump loses his first trade battle with Mexico

The US just lost a trade battle with Mexico. It's the first loss of the Trump era.

Mexico and the US have fought for years over tuna. The US insists that any Mexican tuna sold in the US must be "dolphin safe," meaning dolphins weren't killed by tuna fisherman, which was once common. Mexico says its fisherman play by the rules. The US government disagrees.

On Tuesday, the World Trade Organization ruled in Mexico's favor, allowing it to impose trade sanctions worth $163 million a year against the US. The WTO says that's how much money Mexico has lost from the US unfairly penalizing Mexican tuna.

Source: CNN