epa09891009 A handout photo made available by the Taiwan Presidential office shows, Taiwan President Tsai Ing-wen(center) speaks to United States Senator Lindsey Graham(center-back) and other US officials during their visit inside the Presidential office in Taipei, Taiwan, 15 April 2022. Senator Lindsey Graham leads the delegation to meet with senior Taiwan leaders to discuss U.S.-Taiwan relations, regional security, and other significant issues of mutual interest.  EPA/WANG YU CHING/TAIWAN PRESIDENTIA HANDOUT HANDOUT EDITORIAL USE ONLY/NO SALES HANDOUT EDITORIAL USE ONLY/NO SALES