U.S. Ambassador to the European Union Gordon Sondland testifies before the U.S. House Intelligence Committee on Capitol Hill in Washington D.C., the United States, on Nov. 20, 2019. Gordon Sondland on Wednesday testified that U.S. President Donald Trump conditioned a White House meeting for Ukraine's new president on his assurance to conduct investigation into Trump's democratic adversaries. (Xinhua/Liu Jie)

 

A senior US diplomat directly implicated President Donald Trump on Wednesday in a scheme to force Ukraine to probe a political rival, in bombshell testimony to a televised impeachment hearing.

Gordon Sondland, the ambassador to the European Union, told lawmakers he followed the president's orders in seeking a "quid pro quo" deal for Ukraine to investigate Democrat Joe Biden in exchange for a White House summit.

Sondland said Trump's personal lawyer Rudy Giuliani led the effort at Trump's direction to pressure Ukraine President Volodymyr Zelensky for the investigation and that top officials in the White House and State Department knew about it.

The unexpectedly damning testimony drew a sharp backlash from Trump who tweeted, "This Witch Hunt must end NOW. So bad for our Country!"

Trump said he barely knew Sondland and had not spoken to him much, despite the senior diplomat having donated $1 million to his inauguration and testifying that he had spoken to the president some 20 times while ambassador.

Democrats said Sondland's seven hours of testimony before the House Intelligence Committee had bolstered their case for Trump's impeachment for what they have labeled "extortion."

"Today's testimony is among the most significant evidence to date," said committee chairman Adam Schiff.

"It goes right to the heart of the issue of bribery as well as other potential high crimes or misdemeanors."

A succession of Democrats hoping to win the nomination to take on Trump in next year's election also said the testimony had strengthened the case for impeachment as the issue dominated the opening exchanges in their latest televised primary debate.

Sondland said Trump directed him and two other senior diplomats to work with Giuliani.

From early in the year, Giuliani mounted a pressure campaign on Zelensky's government to investigate Biden over his son Hunter's ties to a Ukrainian energy company, Burisma, and to probe a conspiracy theory espoused by Trump that Ukraine helped Democrats against him in 2016.