Trade wars aren't started by countries appealing to respected, independent trade authorities. Rather, trade wars begin when one country decides to violate international trade rules to undercut another country's industries.

If China is helping its domestic industries charge an artificially low price for solar panels and other environmental goods, then China is violating international trade rules that it agreed to when it became a member of the World Trade Organization.

Nonetheless, the developing countries must be able to reap the benefits of international trade.

It's important to focus on how we can strengthen international trade.

Let me say at the outset that I do not reflexively oppose international trade.

Iowans do understand the importance of breaking down barriers and increasing international trade.