Trump seems to be listening, if only because the Midwestern farming states are among those he won in 2016 and will need to win again in 2020. But there is reason to hope he has realised trade is a two-way street and he is harming as many Americans as he thinks he is helping.
Publicly he presents the "incredible deal" as another weighted in America's favour. While he would be "holding back on tariffs, China will be opening up", he said. "China will be getting rid of tariffs."
Well, for 90 days they may be, though little has been heard from the Chinese yet. It's true Trump has not had to concede the tariffs he has already imposed, but China has shown how effectively it can retaliate, and no doubt will do so if no permanent settlement is reached after 90 days.
In the interim, according to the White House, the two sides will begin negotiations on the issues of genuine concern to the US and to all traders with China — forced technology transfers, copyright enforcement, non-tariff barriers to imports, cyber intrusions and cyber theft. China's Foreign Minister Wang Yi said the leaders have agreed to further talks that could lead to a resolution of "legitimate" US concerns.
Most of those issues should be resolved by improved World Trade Organisation rules, as the G20 discussed, but Trump will probably prefer to put an America First stamp on the outcome, as he did when Nafta was renegotiated with Mexico and Canada to be the USMCA.
Whatever he calls an agreement with China, if it does little more than restore trade between the world's two largest markets to what it was before this trade war, it would be progress.