WASHINGTON — During impeachment inquiry testimony Thursday, a former National Security Council senior director and Russia expert voiced concerns about a "fictional narrative" being pushed by allies of the president.

Fiona Hill's testimony came Thursday during the final scheduled day of public hearings as part of the impeachment inquiry into President Donald Trump. 

Hill aired frustrations at the seeming unwillingness of House Republicans to accept that it was Russia and not Ukraine that interfered in the 2016 U.S. presidential election, a version the U.S. intelligence community pushes back on.

"The unfortunate truth is that Russia was the foreign power that systematically attacked our democratic institutions in 2016," Hill said.

House Intelligence Ranking Member Devin Nunes again attacked the inquiry process and suggested both Russia and Ukraine were both involved in election interference, despite the testimony laid out by Hill.

Hill says a July 10 meeting of U.S. and Ukrainian officials was so alarming that her boss, national security adviser John Bolton, told her to call a lawyer. She recounted that when European Union Ambassador Gordon Sondland and Trump's acting chief of staff worked out a deal with Ukraine President Volodymyr Zelenskiy, Bolton stiffened. She says he told her to call a lawyer and make clear that "I am not part of whatever drug deal."

When asked why Bolton would call Trump's personal attorney, Rudy Giuliani, a "hand grenade," she said Bolton was referring to the attorney floating conspiracies theories about the 2016 election and the Bidens on TV.

Hill warned that embracing conspiracy theories shared by Giuliani, are harmful to U.S. interests.

"I refuse to be a part of an effort to legitimize an alternate narrative... that Ukraine, not Russia, attacked us in 2016," she said.

David Holmes, a political counselor at the U.S. embassy in Ukraine, is also appearing before the House Intelligence Committee. He was within earshot of the infamous phone call between Trump and Sondland in which the ambassador said the president is only interested "in the 'big stuff,' " thought to be Biden investigations.

Holmes says he heard Trump ask Sondland whether Zelenskiy was "gonna do the investigation," and Sondland replied that he was.

"I then heard President Trump ask, 'Will do anything you ask him to do,' " he said.

Many lawmakers, mostly Democratic ones, continue to contend that the president withheld taxpayer military aid to pressure Ukraine for political gain.

"There was definitely an effort by President Trump to bribe the Ukrainians with $400 million in foreign aid in order to investigate his top political opponent," said Rep. Darren Soto, D-Florida.

For now, no additional hearings are expected next week. But additional transcripts from depositions that were conducted behind closed doors could be released.

"I’ve always said that’s not the way I would have done it. I don’t agree with the way it was conducted. But, that in of itself is not an impeachable offense. Even disagreeing on how you run the State Department is a matter of oversight. Whether it rises to the level of removing someone from office, that’s a big hurdle," Sen. Marco Rubio, R-Florida, said. "But again, we have plenty of time to make that decision. I will make my decision on what’s the best interest of the country."

There is no question the highlight of the week has been the testimony of Sondland, a Trump donor who admitted there was a directed effort to get political dirt on former Vice President Joe Biden. Democratic lawmakers hope to further cement his testimony with those of Hill and Holmes.

Republicans argue the money was given to Ukraine without any investigation, and there was no quid pro quo, or favor for a favor.

"Was there quid pro quo? The answer is yes," Sondland testified on Wednesday.

If the Democrats decide to move forward with drafting articles of impeachment, which articles would they bring forward? House Speaker Nancy Pelosi said they haven’t made any decisions yet. They're likely to consider bribery, obstruction of justice, and potentially witness intimidation.

On Wednesday night, Trump tweeted "5 Moments Democrats Don't Want You To See" about Sondland's testimony.

Information from the Associated Press was used in this report.

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