The American-made interceptors are the only effective weapon for downing Russia's ballistic missiles.

Some of Tuesday’s US midterm races may take weeks to clear recounts and court challenges, but ultimately the Senate and House of Representatives decide who gets seated, a power that could matter if a handful of contests determine control of Congress.

US tech stocks were set to fall on Thursday after overnight earnings from Google and Microsoft fuelled uncertainty over the pace of spending on building out AI infrastructure. Futures contracts tracking the Nasdaq 100 pointed to the tech-heavy index opening 1.3 per cent lower, while those for the broader S&P 500 were down 0.4 per cent.

Details of more than 41,000 personnel working for the US Department of Homeland Security (DHS), including thousands involved in immigration enforcement, have been leaked to the public.

The US fiscal outlook is expected to remain a concern for investors regardless of the outcome of next week's midterm elections, with the budget deficit projected to stay around 6% of gross domestic product,

The US economy continues to grow at a strong clip; however, fast-rising gas prices helped to lift inflation in September to a four-month high, new data showed Thursday.

The bond market swung, while U.S. stocks held relatively steady after the Federal Reserve decided not to raise its main interest rate to bring down high inflation.