Trump attacks Theresa May and her Brexit plan. Trump hits China again on the tariff front. 

The signal to investors from these latest ordeals: best start assessing the exposure of companies you own to rising global trade tensions. Goldman Sachs has put together a tidy list of companies (see below) with heavy revenue exposure to Europe and China. It's these companies, and others like them, that have the most to lose if trade relations really turn south this summer. 

Apple (AAPL) and Nvidia (NVDA) -- two long-time Action Alerts PLUS holdings -- are on Goldman's list. Here's why Jim Cramer and his research team remain bullish on each tech giant. Broadly speaking, Cramer thinks much of tech remains attractively valued in light of their future growth prospects.

"All right, so Apple's down a little bit. Look, I could say the same thing about Microsoft, right? Microsoft which I believe because of its red hot Azure business will perform amazingly this quarter, but don't forget the PC business is very good," Cramer said on his latest monthly call with Action Alerts PLUS club members.

Let Jim Cramer's Action Alerts PLUS member club guide you through this market. 

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