Marie Yovanovitch

A large office building is shown with pine trees out front and a person walking down the stairs.

Ukraine asks FBI to help probe suspected Russian hack of Burisma

Ukraine has asked the FBI in the United States for help to investigate a suspected cyberattack by Russian military hackers on Burisma, an energy company caught up in the impeachment of US President Donald Trump.

Ukraine asks FBI to help probe suspected Russian hack of Burisma
A video grab of the US Senate

Impeachment trial in the Senate: How Trump was acquitted

Impeachment trial in the Senate: How Trump was acquitted
US President Donald Trump stands amid microphones outside

How Trump was impeached: A timeline

How Trump was impeached: A timeline
Police escort a woman wearing glasses. More people follow her.

Ousted US ambassador to Ukraine to testify in Trump impeachment probe

Ousted US ambassador to Ukraine to testify in Trump impeachment probe
A House committee room is shown with a chandelier hanging from the ceiling and two television cameras placed among the seats.

Trump impeachment probe goes public as political drama mounts

Trump impeachment probe goes public as political drama mounts
Nancy Pelosi in blue in front of American flags

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.

Key moments in the impeachment inquiry
A uniformed officer walks in front of a man in a suit smiling and holding a coffee

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.

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