That also doesn't show that the American public broadly supports the trade war, it shows that a particular demographic that broadly supported Trump before the trade war broadly also supports the trade war, just a little less than it still supports Trump (78% vs. 79%.)
If that holds for other groups (trade war support just below Trump support) it would indicate America broadly opposes the trade war, as Trump's at <45% support in current polling.
If that holds for other groups (trade war support just below Trump support) it would indicate America broadly opposes the trade war, as Trump's at <45% support in current polling.