On Wednesday afternoon, US House Speaker Nancy Pelosi left China's Taiwan island and flew to South Korea. During her 19-hour stay in Taiwan, Pelosi and Tsai Ing-wen performed a "double act," each with her own hidden thoughts. Their remarks seemed like the same old lines they had rehearsed many times before. They flattered each other and seemed elated and inspired. This appeared to be not only bizarre but also ugly against the backdrop of the tensions in the Taiwan Straits.

To show her so-called strong support for the island, Pelosi declared that the US "stands with Taiwan." She probably wanted to impress the world as an 82-year-old people "offering support" to Taiwan despite the danger, a way to cover up the evil purpose of her visit. This reminds us of a common phenomenon in the international community in recent years: those some US politicians claim to stand with are going to be in trouble.

As the third highest-ranking US politician, Pelosi shamelessly declared that the US "will not abandon its commitment to Taiwan," a breach of Washington's serious political commitments to China. Where is US' national credibility? While Pelosi has been claiming her opposition to "unilateral efforts to change the status quo," she has taken the initiative to stir up trouble for her own political