The Washington Post is reporting Donald Trump’s protocol-breaking telephone conversation with Taiwan’s leader on Friday was an intentionally provocative move that had been planned weeks in advance. Taiwan President Tsai Ing-wen’s call to Trump marked the first communication between leaders of the United States and Taiwan since 1979. China lodged a diplomatic protest with the United States, saying the “one China” policy was the bedrock of relations with the United States. China considers Taiwan to be part of its territory and not an independent nation.

Chinese Foreign Minister Wang Yi: “The Taiwan side’s engagement in a petty action cannot change the 'one China' structure by the international community. I believe that it won’t change the long-standing 'one China' policy of the United States government.”

Trump’s call with the president of Taiwan has also raised new questions about his business dealings. There have been multiple reports that representatives of the Trump Organization have traveled to Taiwan in recent months to explore possible deals, including building luxury hotels near Taiwan’s main airport.