Speaker of the House Nancy Pelosi went to Taiwan yesterday, to tell them that the United States supports Taiwan and its Democracy. From Reuters: "U.S. House of Representatives Speaker Nancy Pelosi told Taiwan's President Tsai Ing-wen on Wednesday that her visit to the island makes it unequivocally clear that the United States will not abandon Taiwan."
Her visit outraged Chinese officials, Beijing voiced strong condemnation over and firm opposition to Pelosi's visit to Taiwan, a provocative move that China criticized as a gross violation of the country's sovereignty and territorial integrity.
Biden on his phone call with President Xi, stated implicitly that he supports "One China Policy," however from appearances Pelosi's visit to Taiwan gives a stark opposing impression. So exactly what is the United States Policy regarding Taiwan?