Chinese President Xi Jinping delivered a stark warning to President Donald Trump during their bilateral meeting in Beijing on Thursday, cautioning that mishandling the Taiwan issue could put the entire US-China relationship in jeopardy, according to China's Foreign Ministry.

In a post on social platform X, ministry spokesperson Mao Ning quoted Xi as telling Trump that “safeguarding peace and stability across the Taiwan Strait is the biggest common denominator between China and the U.S.” Xi stressed that the “Taiwan question” is the most important issue in bilateral ties, warning that if not handled properly, “the entire relationship” could be at risk.

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“'Taiwan independence' and cross-Strait peace are as irreconcilable as fire and water,” Mao wrote, adding that maintaining stability across the strait remains the core common interest for both powers. The readout from the White House did not mention Taiwan, and Trump notably sidestepped reporters’ questions on the subject upon arriving at the summit.

Xi’s remarks come as Beijing is widely expected to leverage trade talks to shift Washington’s stance on Taipei. China has long viewed the island as part of its territory, while the U.S. has not recognized Beijing’s claim but also has not recognized Taiwan’s independence. This delicate balancing act is now under intense scrutiny.

Trump faces bipartisan pressure at home. A group of eight Republican and Democratic senators called on the president to make clear to Xi that Washington’s support for Taipei is “inviolable.” The lawmakers urged Trump to formally proceed with a $14 billion U.S. arms sale to Taiwan, signaling that congressional support for the island remains strong regardless of any potential trade-offs.

The meeting, held against a backdrop of high-stakes negotiations over trade and Iran, saw both leaders strike a cooperative tone publicly but avoid substantive commitments. Xi’s blunt language on Taiwan underscores Beijing’s red line: any perceived move toward official U.S. recognition of Taipei would be met with serious consequences.

Analysts note that Xi’s warning is calibrated to test Trump’s willingness to prioritize economic deals over longstanding security assurances to Taiwan. With the U.S. president eager to announce a trade breakthrough, the Taiwan question remains the most volatile flashpoint in the relationship.

Trump did not respond to reporters’ queries on Taiwan upon arrival, and the White House’s official readout of the meeting omitted any mention of the island. This silence has fueled speculation that the administration may be open to a softer line on Taiwan in exchange for Chinese concessions on trade and other issues.

However, the bipartisan letter from senators—joined by both Republicans and Democrats—signals that any such shift would face fierce opposition in Congress. The lawmakers emphasized that Washington’s commitment to Taipei is “non-negotiable” and urged Trump to move forward with the arms sale without delay.