Top U.S. trade negotiator Katherine Tai on Oct. 4 vowed to unwind some Trump-era tariffs on Chinese goods, and press the Chinese regime for “frank” talks in a bid to end Beijing’s unfair trade practices. Over the past decades, Beijing has poured billions in state subsidies into targeted industries such as steel, solar, and agriculture, causing the shuttering of American factories and a “zero-sum dynamic in the world economy,” Tai told an Oct. 4 panel hosted by Washington-based think tank Center for Strategic and International Studies. “Above all else, we must defend—to the hilt—our economic interests,” she said at the event, explaining that she would be “taking all steps necessary to protect ourselves against the waves of damage inflicted over the years through unfair competition.” Tai said that her office has conducted a comprehensive review of the phase-one trade agreement the United States reached with China last year during the …