Industry groups had warned there was only so long airports could "run on fumes", following the announcement of the new quarantine rules.

Twitter said it was permanently barring Mr Trump from its platform, while YouTube, Facebook and others announced suspensions in response to calls to shut off his megaphone.

Clarity was founded in 1854 by a wealthy blind woman, Elizabeth Gilbert, as the Association for Promoting the General Welfare of the Blind, to provide opportunities for workers whom other employers overlooked because of their disabilities. Before the takeover,...