The Trump administration on Monday asked the Supreme Court to uphold the president's removal of the Register of Copyrights Shira Perlmutter from her influential post earlier this year inside the Library of Congress that oversees and enforces the United States' copyright system.

Trump made the surprise announcement on Truth Social while he was aboard his Marine One helicopter flying to meet Xi for a trade negotiating session in Busan, South Korea. He said he was instructing the Pentagon to test the US nuclear arsenal on an “equal basis” with other nuclear powers.

Trump announced, 'Because of other countries testing programs, I have instructed the Department of War to start testing our Nuclear Weapons on an equal basis'.

Trump said that the US had more nuclear weapons than any other country and this was due to “a complete update and renovation of existing weapons”, during his first term.