Treasury Secretary Janet Yellen says former President Donald Trump ‘s policies toward China left America “more vulnerable and more isolated” in the global economy, a rare jab by her at the front-runner for the Republican presidential nomination. Yellen, in prepared remarks to be delivered at a U.S.-China Business Council event Thursday night, says the Trump administration “failed to make investments at home in critical areas like infrastructure and advanced technology, while also neglecting relationships with our partners and allies that had been forged and strengthened over decades.” Her comments come as the U.S. rebuilds its relationship with the Asian superpower, including a November meeting between U.S. President Joe Biden and Chinese President Xi Jinping in San Francisco. The two nations agreed to curb the production of illicit fentanyl, a deadly component of drugs sold in the United States, and agreed to resume military-to-military communications. Yellen, who rarely comments on the previous administration’s approach on trade, said Trump-era policies on China “left America more vulnerable and more isolated in a competitive global… Fatima Hussein , The Associated Press