The scandal over Donald Trump’s efforts to pressure Ukraine into investigating his political rival might ultimately have no consequences for the U.S. president. It could, however, undermine a historical opportunity for Ukraine’s new leadership to drain its own swamp.

Various U.S. news outlets reported this week that Trump ordered his administration in July to withhold about $400 million in military aid to Ukraine. Later that month, he reportedly pressed Ukrainian President Volodymyr Zelensky to investigate the alleged involvement of Democratic front-runner Joe Biden and his son Hunter in influence-peddling in Ukraine. This is a problem for Trump if someone can demonstrate corrupt intent — that is, that he was using the state’s resources as a lever to achieve his personal campaign goals.

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