Live updates and the latest news as former Trump national security adviser Mike Waltz testifies at his Senate confirmation hearing for United Nations ambassador and Trump travels to Pittsburgh for an AI summit.

U.S. President Donald Trump threatened to hit buyers of Russian exports with sanctions unless Russia agrees a peace deal over the conflict in Ukraine, potentially complicating Moscow's oil sales to China,

Chinese quantitative hedge funds are stepping up efforts to hire science and engineering students in the US affected by President Donald Trump’s university funding cuts and tighter visa policies.

A top Democrat criticized the move to spend a billion on offensive hacking operations as the budget guts a billion from U.S. cyber defense.

China is increasing its diplomatic reach as President Donald Trump's administration pares back America's international presence, Democrats from the U.S. Senate Foreign Relations Committee said in a report released on Monday.

Trump's tariffs could hit China, India and Brazil especially hard. All three countries are top buyers of Russian fossil fuels.

US President Donald Trump has announced that all imports from the EU and Mexico will have a 30% tariff as of August 1. He sent letters to EU President Ursula von der Leyen and Mexico’s President Claudia Sheinbaum informing them of the new rates, which were also posted on his Truth Social account on Saturday.

U.S. retailers and other importers that had largely halted shipments in May due to tariffs, resumed imports from China in June, amid truce.