The meeting outside Los Angeles comes on what is technically a stopover for President Tsai Ing-wen, after her two-country trip in Latin America to visit Taiwan's few remaining official allies.
Trump is the first sitting or former American president to be criminally indicted -- a historic development that has propelled the United States into uncharted political waters.
Trump, the first former U.S. president to face criminal charges, is due to be arraigned, fingerprinted and photographed at the downtown Manhattan courthouse on Tuesday. His lawyers have said he will enter a plea of not guilty.
Two nine-year-old girls, a nine-year-old boy, two teachers and a school custodian died in the Monday attack, which recharged the bitter debate over gun rights in the United States.
