March 6, 2018 – 8:07am

The 7th round of NAFTA talks concluded in Mexico City yesterday with US president Donald Trump threatening steel and aluminum tariffs to gain concessions in the deal plus news of Canada, the United States and Mexico agreeing to an expansion of the climate-killing energy proportionality provision in the deal.

The Washington Post reports, “Trump on Thursday [March 1] surprised much of Washington by announcing that he would impose a 25 percent tariff on steel and a 10…