The Trump administration's move to block Harvard University from enrolling international students threatens a cradle for global political leaders.

The Trump administration’s sudden move to bar foreign students at Harvard University is seen as dealing a blow to the US’s standing in business — and handing an advantage to elite rival colleges across the English-speaking world.

The Trump administration is ramping up its battle with Harvard University, with the Department of Homeland Security announcing the school is barred from enrolling foreign students and orders more than 6,