Trump spoke to reporters Wednesday as he departed the White House for a speech in Louisville.
Trump repeatedly interrupted Biden during a chaotic and ill-tempered debate on Sept 29, at one point provoking Biden to snap: "Will you shut up, man?"
Trudeau had a quiet word and a handshake with Trump as he arrived at the summit Wednesday, and later tried to shrug off the episode.
Tu Youyou, China's only Nobel laureate in medicine, was on the team. Tu won the Nobel Prize in 2015 for her discovery of artemisinin, an antimalarial treatment derived from sweet wormwood, a TCM herb.
Tropical depression Podul and other weather systems that have passed over southern and central Laos since the end of August unleashed torrential rain, causing widespread flooding in southern Lao provinces of Khammuan, Savannakhet, Attapeu, Salavan, Champasak and Sekong, local daily Vientiane Times reported on Monday.
Trump called Barrett, a federal appeals court judge, "one of our nation's brilliant legal scholars, and she will make an outstanding justice on the highest court in the land".
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Trump repeated what he has said and tweeted many times before: that he has great respect for President Xi Jinping and considers China's president a good friend.
Trump is expected to inform Congress as early as Friday, several media outlets quoted anonymous White House sources as saying.
Trump said that if Congress fails to pass the legislation, he would direct his administration to "deploy new tools, developed under existing authorities, that will do so globally."
Trump's top climate adviser Scott Pruitt was indignant: "The world applauded when we joined Paris. And you know why? I think they applauded because they knew it would put this country at a disadvantage."