Strange sell-off in the dollar raises the specter of investors losing trust in the US under Trump

Among the threats tariffs pose to the U.S. economy, none may be as strange as the sell-off in the dollar. Currencies rise and fall all the time over inflation fears and other factors, but economists worry the dramatic dollar drop shows a loss of confidence in the U.S. as President Donald Trump tries to reshape global trade. If true, the blow could be big. The special status of the dollar as the medium of international trade and a safe haven has allowed the U.S. government, consumers and businesses to borrow at low rates even as debts have ballooned, which has helped speed economic growth.