Jan 21 (Reuters) - Ken Griffin, the CEO of Citadel, said on Wednesday that the United States had "frayed its relationship" with its European allies in a way that the billionaire said he did not "understand or appreciate".
Griffin's comments, made at the World Economic Forum in Davos, come after President Donald Trump vowed over the weekend to implement a wave of increasing tariffs on European allies until the United States was allowed to buy Greenland, escalating a row over the future of Denmark's vast Arctic island.
