The Guardian

Researchers who receive US funding are being asked to confirm they align with American interests, including only recognising two genders• Follow our Australia news live blog for latest updates• Get our breaking news email, free

Key US stock index closes more than 10% down from February peak amid volatility caused by president’s tariffsThe S&P 500, a key US stock market index, closed in correction territory on Thursday as the volatility

Mahmoud Khalil described by former colleague at UK office for Syria as well liked and extensively vettedA detained Columbia University graduate threatened with deportation after the Trump administration claimed he poses a risk to US

Peter Dutton also declines to say whether he would back a further extension of household energy bill rebates if he wins coming electionFollow our Australia news live blog for latest updatesGet our breaking news email,

Canadian government says it will follow ‘dollar-by-dollar’ approach and institute 25% tariffs on US importsCanada announced retaliatory tariffs on nearly C$30bn worth of American imports after US tariffs on steel and aluminum imports went into