Thursday's hearings will feature testimony from Fiona Hill, a former Russian Federation adviser at the White House who served until this summer as a top director on the National Security Council, and foreign service officer David Holmes, an American diplomat who serves as the counselor for political affairs at the U.S. Embassy in Kyiv, Ukraine.
Fiona Hill, a former National Security Council official responsible for Europe and Russian Federation, came out with guns blazing.
A former White House Russia analyst sternly warned Republican lawmakers - and implicitly President Donald Trump - to quit pushing a "fictional" narrative that Ukraine, not Russia interfered in the 2016 election as they defend Trump in the impeachment inquiry.
Over the past three days, lawmakers have spent hours questioning a total of nine USA officials (including Hill and Holmes).
"I would ask that you please not promote politically driven falsehoods that so clearly advance Russian interests", she will say.
Hill said Bolton told her he didn't want to be involved in any "drug deal" Sondland and President Trump's acting White House chief of staff Mick Mulvaney were cooking up over the Ukrainian investigations President Trump wanted.
"It became apparent that Mr. Giuliani was having a direct influence on the foreign policy agenda that the three amigos were executing on the ground in Ukraine", Holmes testified, with the "three amigos" being U.S. Ambassador to the European Union Gordon Sondland, Energy Secretary Rick Perry, and former Ukraine envoy Kurt Volker.
After the phone call, Holmes claimed in his closed-door testimony that Sondland recalled that Trump only cared about the "big stuff" that affected him, in reference to the Biden investigation.
'Every time Rudy gets involved he goes and f--s everything up': Holmes recalls Sondland's thoughts on Giuliani's influence on the Ukraine agenda. Sondland also said he understood the "prerequisites" to be a reflection of "Trump's desires and requirements".
"That is the Democrats' pitiful legacy", Nunes said in his opening remarks.
Sondland conceded that Trump never told him directly the security assistance was blocked for the probes, a gap in his account that Republicans and the White House seized on as evidence the president did nothing wrong. Other impeachment witnesses have connected military aid withheld from Ukraine to the alleged quid pro quo.
Former White House national security aide Fiona Hill, left, and David Holmes, a US diplomat in Ukraine, are sworn in to testify before the House Intelligence Committee.
Both Hill and Holmes reiterated that it was obvious to all concerned that Burisma was synonymous with the Bidens, in part because Giuliani was publicly equating the two.
Mr. Sondland said there was a clear quid pro quo that attached a condition - a public announcement of the investigations - to a potential official action by Mr. Trump, inviting President Volodymyr Zelensky of Ukraine to the White House.
Later Wednesday, another witness undercut a main Republican argument - that Ukraine didn't even realize the money was being held up.
The investigation is focused on the USA president's request in a July 25 phone call that Ukrainian President Volodymyr Zelenskiy conduct two investigations that could harm Trump's political adversaries.
Opening the hearing on Thursday, Schiff said lawmakers in the coming days will "determine what response is appropriate" after the recent testimony. He also distanced himself from his hand-picked ambassador, saying he didn't know him "very well".
Trump concluded, "It's all over" for the impeachment proceedings. "Now they're accusing Ukraine".