When Donald Trump threatened to "break" the North American Free Trade Agreement, auto industry workers offered up some of the loudest cheers.

Chipotle Mexican Grill revealed on Tuesday that federal prosecutors had expanded their inquiry into the company's multi-state outbreaks of food-borne illnesses, further threatening sales that declined steeply by the end of last year.

Across Nigeria, low-cost Chinese goods are everywhere, evidence of Beijing's growing dominance in global trade. The trade flow has helped keep life affordable for millions of Nigerian families, at a time when the country is struggling with economic stagnation and plunging prices, as well as the deadly costs of the Boko Haram insurgency.

The announcement on the Export-Import Bank's website proclaimed in big blue letters "Ex-Im Bank Reauthorized" - but the fight is not over yet for the government's embattled export credit agency.

After watching the price of oil and the size of their profits plunge, a dozen top executives from some of the nation's largest oil exploration companies flew to Washington late last winter on an urgent mission: push Congress and the White House to allow unlimited exports of American crude oil.