Note:
(a) "賴清德面對媒體時，均微笑未發言，白宮也尚未對外釋出，與賴清德會談的人士與對話內容。 * * * 國安會由負責中國、台灣及蒙古事務的主任簡以榮（Ivan Kanapathy）出來接待，帶賴清德一行進入艾森豪行政大樓"
(i) Ivan J Kanapathy's title is Director for China, Taiwan, and Mongolia (likely the only such director under President Trump), National Security Council. There is no Wiki page for or biography in the Web about him. He was with United States Marine Corps (USMC).
(ii) Trump's first National Security Advisor (NSA; head of National Security Council) Michael Flynn hired Matthew Pottinger (also from USMC) as NSC's Director for Asia (a rank higher than Kanapathy). Trump fired NSA John R Bolton on Sept 10, 2019. Pottinger was elevated to deputy NSA on Sept 22, 2019. Kanapathy remains where he was.
(iii) NSC has headquarters at EEOB (see (b)). See table in https://en.wikipedia.org/wiki/Un ... al_Security_Council
. So the agency is not exactly in the White House.
(d) "賴清德前一日出席在美國國會舉辦的「國際宗教自由圓桌會議」致詞"
United States Ambassador-at-Large for International Religious Freedom Sam Brownback (since Feb 1, 2018) was Kansas governor (2011-Jan 31, 2018; Republican) and US senator from Kansas (Nov 7, 1996-2011). Brownback took office right after he won the election, because the incumbent was an governor appointee on June 11, 1996 to replace Senator Bob Dole, who had resigned to run for president (as Republican nominee) but lost to President Bill Clinton.
Sophia Yang, Taiwan VP-elect speaks of religious freedom on eve of National Prayer Breakfast. Taiwan News 台灣英文新聞 (a private news outlet), Feb 5, 2020 https://www.taiwannews.com.tw/en/news/3871377
the first two paragraphs:
"Taiwan's Vice President-elect William Lai (賴清德) spoke of the success story of Taiwan's democracy in which people from different religions contribute, winning a big round of applause at a meeting in Washington on the eve of the high-profile National Prayer Breakfast.
"On Tuesday (Feb 4), Lai was invited to deliver a speech at the inaugural meeting of the new International Religious Freedom Roundtable, which is considered a warm-up to the Prayer Breakfast. Lai was sitting next to Sam Brownback, US Ambassador-at-Large for International Religious Freedom.