Frayed by tariff wars and political battles, the academic ties between the U.S. and China are now facing their greatest threat yet as the Trump administration promises to revoke visas for an unknown number of Chinese students and tighten future visa screening. In a brief statement Wednesday, Secretary of State Marco Rubio said the U.S. will “aggressively” revoke visas for Chinese students, including those with ties to the Chinese Communist Party or studying “critical fields.” Rubio’s statement threatened to widen a chasm between the two nations, building on a yearslong Republican campaign to rid U.S. campuses of Chinese influence and insulate America’s research from its strongest economic and military competitor. Rubio’s announcement has rattled Chinese students and drawn swift condemnation from the Chinese government and some U.S. lawmakers. The Chinese Embassy on Thursday said it “lodged a solemn démarche with the U.S. side without delay” and urged the U.S. to correct its mistake and protect the rights of Chinese students. The visa policy also raised alarm at U.S. campuses that host more than 275,000 students from China and benefit from their tuition payments. Chinese graduate student Kesong Cao, 26, decided to abandon his studies in the U.S. because of Trump’s policies. “I do not feel welcome anymore,” said Cao, a student of cognitive psychology at the University of Wisconsin, who was waiting at Seattle’s airport Thursday to board a flight home to China. Cao spent eight years in the U.S. and once dreamed of staying as a professor. “Now it seems like that dream is falling apart,” he said. “It’s a good time to jump ship and think about what I can give back to my own country.” The scope of the visa crackdown wasn’t immediately clear, with no explanation on what would constitute ties to the Communist Party. But the impact could be significant if the government goes after any student with family members in the party, said Sun Yun, director of the China program at the Washington-based think tank Stimson Center. Academic ties with China were built over decades Academic leaders in the U.S. have spent years trying to tamp down growing hostility against Chinese students and scholars, saying the benefits of the relationship outweigh the risks. Collaboration between the countries produces tens of thousands of scientific papers a year, yielding major advancements in fields from earthquake prediction to disease treatment. The academic alliance has been built up over decades since both sides resumed diplomatic ties in the 1970s. Chinese researchers are the most frequent international co-authors for U.S. researchers in science and engineering journal articles. Both sides are research powerhouses. Any move that prevents the U.S. from welcoming the smartest people in the world is an “extremely bad idea,” said L. Rafael Reif, a former president of the Massachusetts Institute of Technology who pushed back against anti-China sentiment during President Donald Trump’s first term. “This administration will be known historically as the one that began the decline of the U.S. by completely failing to understand the importance of science and technology — and the importance of gathering the most talented human capital from the world to work together towards a thriving United States,” Reif said in a statement to The Associated Press. Erica Zhang, who graduated from George Washington University in December and is awaiting approval of her green card, said the new […]