At first, it might seem surprising that Ukraine, a country on the fringes of Europe, is suddenly at the turbulent center of American politics and foreign policy. With an impeachment inquiry in Washington adding further detail to the story of the Trump administration’s efforts to tie U.S. security assistance for the country to Ukrainian cooperation in investigating President Donald Trump’s Democratic opponents, Trump’s presidency itself hangs in the balance. And the repercussions go even further, raising questions about the legitimacy and sustainability of U.S. power itself.

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