Harvard University refused to accept a deal with the Trump administration two weeks after the US government threatened to halt $9 billion in funding, vowing it won't "negotiate over its independence or its constitutional rights&.

Officer Carlos Zamora and his fellow soldiers stood alongside their 20-ton Stryker combat vehicle overlooking a labyrinth of dusty trails and cliffs, an inhospitable desert-scape that for years has proved difficult for US authorities to patrol amid the surge in illegal border crossings and drug smuggling from Mexico.

Donald Trump&s top advisers and the president of El Salvador have said they have no basis for the Central American nation to return a Maryland man who was wrongly deported there last month.

The FTSE 100 joined a global stock market rebound on Monday morning, despite warnings from the US that tariff exemptions on electronics are only a temporary reprieve.