The video reflected the escalating anger in China over the tariffs of as much as 25 percent imposed on tens of billions of dollars worth of Chinese goods, including steel, aluminum and a variety of technology products.

“They sense his increasing domestic weakness and see a chance to pile pressure on,” said Kerry Brown, a professor of Chinese politics at King’s College London.

Still, Mr. Brown added that the criticism would probably be muted to avoid provoking a backlash in the United States. And it indeed appeared that China’s propaganda officials had second thoughts.

Mr. Trump has described the tariffs as necessary to reduce the United States’ trade deficit with China. But his efforts have rattled Chinese officials and prompted a series of retaliatory actions from Beijing, which fears slowing economic growth.

Chinese news outlets, which are tightly controlled by the ruling Communist Party, often criticize the United States in general terms. But in recent months, commentators have shown a greater willingness to invoke Mr. Trump’s name directly, accusing him of making misleading statements and resorting to “childish tactics.”