China’s expanding international dispute-resolution forums support its global ambitions, but perceived tensions between fairness and advancing national interests could undermine foreign firms' trust in the system.

The proposed Section 301 tariffs are intended more to pressure countries to sign deals than to enforce labor protections: they mark a renewed effort to take tariff authority from Congress and set rates for all imports from all trading partners at the president’s will.

After the Supreme Court limited IEEPA tariff authority, the Trump administration turned to Section 301 of the Trade Act. Gregory Shaffer and Jeremiah May on the new legal questions this raises — and why the new tariffs are still vulnerable to challenge: