The party of jailed ex-prime minister Nawaz Sharif initially rejected the so far incomplete results, but by Friday its leaders appeared to accept that Khan would be the next prime minister.
This week, after just two days on strike, their powerful union agreed to a deal before the summer holidays, the first time in eight years that has happened.
Trump said Europe agreed to increase purchases of U.S. liquefied natural gas and lower trade barriers to American soybeans, aiding U.S. farmers and the energy sector.
The Vientiane Times, citing district governor Bounhom Phommasane, said about 19 people have been "found dead", more than 3,000 "require rescue" and about 2,851 have been saved.
The Olympic mascot, a blue-checked pointy-eared figure, was named as Miraitowa — combining the Japanese words 'mirai', meaning future, and 'towa', which means eternity.
A Morocco conference will discuss the disappointing results in 2018 FIFA World Cup where all the African nations were knocked out in the group stages for the first time since 1982.
His comments worried investors already grappling with the impact of a strengthening U.S. dollar on corporate results, and key stock indexes on Wall Street dropped at the open on Friday.