Mexico is finding itself in the hot seat, with a new proposal at the NAFTA talks.
American negotiators are suggesting that if Mexican auto manufacturers agree to give workers a significant boost in wages, they would get credits toward an overall formula for calculating which cars can avoid tariffs under the auto rules of origin.
With looming elections in Mexico, officials are especially anxious to get a deal, but the pro-establishment government has systematically opposed the idea of enshrining wage increases in a trade deal.