On May 20, Taiwan inaugurated a new president, Tsai Ing-wen, who has been described as the most powerful woman in the Chinese-speaking world. It was a historic election not just because Taiwan elected its first female president but because the opposition, the Democratic Progressive Party, won both the presidency and a majority in the Legislative Yuan. What does the new administration intend for Taiwan's future and for the future of cross-strait relations, how will China respond, and what role is there for the US to play to promote regional security?