In highly anticipated testimony, a top envoy said the operation to extract a political favor from Ukraine was done at the direction of the president, vice president and secretary of state.

Gordon D. Sondland, the United States ambassador to the European Union, has evolved from a loyal Trump campaign donor to a witness central to the impeachment inquiry. But his testimony has been contradicted on multiple occasions.

Today, we look at how both Democrats and Republicans on the House Intelligence Committee handled their most complicated witness to date.