Ahead of this weekend's G-7 Summit in Canada, TheStreet's founder and Action Alerts PLUS Portfolio Manager Jim Cramer notes the "fluidity" of trade talks.


"You could put on those tariffs on steel and aluminum and then the market keeps humming even though there are some parts of it that did get hurt in terms of the costs," Cramer noted. "I think that the spat with Mexico is very crucial because if NAFTA has ended - if [Trump] just stops NAFTA, then you're going to see a big hit to the market and then it might come back but Mexico is integral to our economy."

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