Volodymyr Zelenskiy

Trump impeachment

Key moments in the impeachment inquiry

The US House of Representatives will vote on a resolution to formalize the impeachment inquiry into President Donald Trump Thursday, which will set rules for the investigation going forward. But what's happened in the inquiry so far? The World looks back at some key moments.

Justice

Presidents aren't immune to treason convictions. Just look to Ukraine.

Donald Trump has callously thrown around accusations of treason aimed toward his political rivals — others think the president's actions are worthy of the charge. Treason is a high bar to prove in the US, but in Ukraine, a presidential treason conviction was announced earlier this year. And it has lessons for American democracy, experts say.

US diplomat thought it was 'crazy' to withhold Ukraine aid: texts

As part of his Thursday testimony to members of the US House of Representatives, former US envoy to Ukraine Kurt Volker turned over text messages between himself, diplomats in Kyiv and others involved with Ukraine, including President Donald Trump's personal attorney, Rudy Giuliani, who played a major part in the administration's dealing with Kyiv.

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Trump scandal threatens to derail Ukraine's anti-corruption efforts

Ukrainians are accustomed to powerful forces meddling in their judicial system, Anne Applebaum, a Pulitzer Prize-winning historian and expert on central and Eastern Europe, tells The World's host, Marco Werman. But even as they find corruption foisted on them by their most important ally in Washington, DC, Ukrainians have remained determined to root out unethical practices in their own country.

US diplomat thought it was 'crazy' to withhold Ukraine aid: texts

As part of his Thursday testimony to members of the US House of Representatives, former US envoy to Ukraine Kurt Volker turned over text messages between himself, diplomats in Kyiv and others involved with Ukraine, including President Donald Trump's personal attorney, Rudy Giuliani, who played a major part in the administration's dealing with Kyiv.

Justice

Presidents aren't immune to treason convictions. Just look to Ukraine.

Donald Trump has callously thrown around accusations of treason aimed toward his political rivals — others think the president's actions are worthy of the charge. Treason is a high bar to prove in the US, but in Ukraine, a presidential treason conviction was announced earlier this year. And it has lessons for American democracy, experts say.