Rightwing group backed by Koch and Leo sues to stop Trump tariffs

A libertarian group backed by Leonard Leo and Charles Koch has mounted a legal challenge against Donald Trump's tariff regime, in a sign of spreading rightwing opposition to a policy that has sent international markets plummeting. The New Civil Liberties Alliance filed a suit against Trump's imposition of import tariffs on exports from China, arguing that doing so under the International Emergency Economic Powers Act (IEEPA) - which the president has invoked to justify the duties on nearly all countries - is unlawful. The group's actions echo support given by four Republican senators last week for a Democratic amendment calling…