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He had also worked for former President Barack Obama as a special assistant to the president and the deputy director of advance organising his travel in the US and abroad.
USA Track & Field declined to select Richardson to the relay team for the Olympic Games in Tokyo after she accepted a one-month ban for the prohibited substance, which she said she used to cope with the death of her mother.
Lal is an active member of the space technology and policy community, having chaired, co-chaired, or served on five high-impact National Academy of Science committees.
The grand White House is the official residence and workplace of the US President and each country has an official space to accommodate its head of state and family. But what about the heads of other countries?
The presidential race was coming down to close contests in five states. Biden held narrow leads in Nevada and Arizona while Trump was watching his slim advantage fade in must-win states Pennsylvania and Georgia.
He made the remarks while addressing supporters and family at the White House.
The envelope was intercepted at a government mail center before it arrived at the White House.
Trump returned to the media room several minutes later and said a person had been shot by law enforcement and taken to the hospital.
The country's most significant night of protests in a half-century spilled into another day of unrest fuelled by killings of black people at the hands of police.
Trump's new Chief of Staff Mark Meadows, who took over last month, was reported to be poring over the list of key administration position and considering suggesting changes.