[dragonwriter]

The trade war specifically is not addressed in the poll; “free trade” is, and it has broad support. Free trade is directly the opposite of a tariff policy, so superficially that's directly contrary to your characterization. While you could argue that the policy is designed to produce an outcome which would feature free trade as a future state, there's nothing in the poll that suggests that the public supports that position. So, no, while there is a potential argument that your source doesn't directly contradict the point you cite it for, it absolutely does not support that point even a little bit.

[Fjolsvith]

https://www.cnbc.com/2019/08/07/us-china-trade-war-is-hurtin...

[dragonwriter]

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.