
Sixteen US states sued President Donald Trump's administration on Monday over his decision to declare a national emergency to fund a wall on the southern border with Mexico, saying the move violated the constitution. The lawsuit, filed in a federal court in California, said the president's order was contrary to the Presentment Clause that outlines legislative procedures and the Appropriations Clause, which defines Congress as the final arbiter of public funds.

United States President Donald Trump has promised European Commission President Jean-Claude Juncker that he will not impose additional import tariffs on European cars for the time being, Juncker was quoted in a published interview as saying on Monday.

A C-17 cargo plane of the United States Air Force took off Saturday from the Homestead Air Force Base, in Florida, with the Venezuelan-Colombian border as the destination. The aircraft is one of three that will transport 250 tons of food, hygiene kits and nutritional supplements, a congressional aide to the US Congress told the Associated Press (AP).

Trade talks between the US and China have broken up without a deal, with the US warning that “very difficult issues” remain unresolved. The talks in China this week were aimed at securing a new deal before further US tariffs are imposed on 1 March. China said negotiations would now continue in the US next week.

President Donald Trump on Friday declared a national emergency in a bid to fund his promised wall at the U.S.-Mexico border without congressional approval, an action Democrats vowed to challenge as a violation of the U.S. Constitution.

US investment bank JP Morgan has created a crypto-currency to help settle payments between clients in its wholesale payments business. JPM Coin is the first digital currency to be backed by a major US bank.

Amazon has said it will not build a new headquarters in New York, citing fierce opposition from state and local politicians. The dramatic turnabout comes just months after the firm named New York City one of two sites selected for major expansion over the next decades. City and state leaders had agreed to provide about US$3bn in incentives to secure that investment.

US President Donald Trump is to declare a national emergency to fund his planned border wall with Mexico, the White House has said. He will sign a border security bill to avert a government shutdown - but also act to bypass Congress and use military funds for the wall, a statement said.

United States and Chinese negotiators kicked off two days of official trade talks in Beijing on Thursday as the world's top two economies try to patch up their festering economic dispute. Pressure to seal an accord ahead of a March deadline lessened before the talks as US President Donald Trump indicated on Tuesday in Washington he was open to extending a trade truce, depending on progress in Beijing.

During 14 years of intrepid exploration across Mars, it advanced human knowledge by confirming that water once flowed on the red planet - but NASA's Opportunity rover has analyzed its last soil sample. The robot has been missing since the US space agency lost contact during a dust storm in June last year and was declared officially dead on Wednesday, ending one of the most fruitful missions in the history of space exploration.