The premier of a Canadian province launched a blistering attack on U.S. President Donald Trump on Thursday, calling him a “bad person” and “not to be trusted” and urging Canada to keep fighting rather than rush to make concessions in trade talks with Washington.

Manitoba Premier Wab Kinew said Canada has leverage in the talks even as his province weighs restoring U.S. alcohol sales at Prime Minister Mark Carney’s urging to help secure a deal that would avert threatened 50% U.S. tariffs.

“Everybody knows the American president by now, he’s erratic, he’s irresponsible, and he’s not to be trusted. And this is the person that we were supposed to make a deal with, and we’re going to make additional concessions for it. That’s why I say you can’t make a good deal with a bad person, because who’s to say it’s not going to be undone?” Kinew said.