US President Donald Trump announced that "the most important case in history" will take place before the US Supreme Court.
"If the Supreme Court shows great Wisdom and Courage, the American People will win perhaps the most important case in history, and our Electoral Process will be respected again!", Trump wrote.
Entrepreneur Elon Musk has launched the latest prototype of his Starship vehicle from Texas.
Codenamed SN8, the unmanned rocket lifted away from the Boca Chica R&D facility on what had been billed as a brief flight to 12.5km.
The 50m-tall vehicle crashed on touchdown but Mr Musk was delighted with how much the test outing achieved.
The U.S. has passed its peak in new coronavirus cases, the nation's president said on April 15.
Speaking during a White House Coronavirus Task Force briefing, Donald Trump said new cases are declining in the New York metropolitan area, the city of Houston, Texas and the city of New Orleans in Louisiana and cases in Detroit and the Denver metro area are flat.