For Lev Parnas, the Ukrainian American businessman who joined Rudy Giuliani in a back-channel campaign to unearth damaging information about Joe Biden, the money kept flowing.

There was a $1,410 charge to a Palm Beach limousine service and nearly $20,000 in expenses at Trump hotels in Washington, DC, and New York. There were bills running to hundreds of dollars at exclusive restaurants such as Novikov in London and BLT Prime in Washington. During one of his many trips to the Ukrainian capital of Kyiv, there was a $657 charge at Tootsie, the popular strip club in the heart of the city.

At the same time that he was facing court judgments for hundreds of thousands in personal debts, the 47-year-old political operative was traveling like a freewheeling CEO as he met with Ukrainian prosecutors and other officials.

BuzzFeed News obtained unprecedented access to scores of bank records from private business accounts controlled by Parnas and his partner, Igor Fruman, as they carried out a campaign now at the center of the first presidential impeachment inquiry in a generation.

Three congressional committees have already sent the men letters demanding records about their efforts to help President Donald Trump. Coming just a week after those inquiries, these financial documents — a potential road map of the duo’s travel and the sources of any funding they received — are likely to attract the interest of investigators.

In July, a joint investigation by BuzzFeed News and the Organized Crime and Corruption Reporting Project — which was cited in the whistleblower complaint that sparked the impeachment inquiry — revealed that Parnas and Fruman pushed Ukrainian prosecutors to investigate Trump’s top political rival and his son, Hunter Biden, under Giuliani’s direction.

The two men also urged prosecutors to probe accusations that Ukrainian agents tried to rig the 2016 election in Hillary Clinton’s favor by divulging evidence about Trump campaign chair Paul Manafort, in what became a pillar of the Mueller investigation.

Meanwhile, Parnas dined with President Donald Trump in Washington and met with Donald Trump Jr. and Tommy Hicks Jr., now co-chair of the Republican National Committee, in Beverly Hills, all the while spending hundreds of thousands of dollars on Republican causes.

The House committees conducting the presidential impeachment inquiry have sent a subpoena to Giuliani, who has been working as a lawyer for the president, demanding that he turn over any records of his efforts with Ukraine authorities since Trump took office.

So far, Parnas and Fruman have failed to cooperate with congressional investigators, according to one person working on the impeachment inquiry. “If they continue to fail to comply, they will be served with subpoenas in short order,” the official said.

Experts in congressional investigations said the financial records obtained by BuzzFeed News provide potentially critical evidence — and could help House members determine not just what actions were undertaken on the president’s behalf, but also whether the men complied with campaign finance or foreign lobbying laws.

John Dowd, a lawyer for Parnas and Fruman, declined to comment on his clients’ transactions. But in an earlier series of interviews with BuzzFeed News, Parnas said he was not paid any money for setting up meetings between Giuliani and Ukrainian prosecutors, and that he did so “because it was my duty.”

“I just want to make sure the right information comes out,” he said.

Parnas said he met “many times” with the president over the past year but refused to talk about what they discussed. “I am not going to talk about my conversations with the president,” he said.

The records provide new details about the origins of some of the money that Parnas and Fruman used to finance their back-channel campaign, which included trips to Kyiv, Paris, Warsaw, and New York to meet with Ukrainian officials.

The records do not identify all the sources of their funding, but much of it — $1.26 million — came from a mortgage that Fruman took out last year against an oceanfront condo he owned in one of the most exclusive enclaves of south Florida.

It’s unclear what financial arrangement the two partners had, but records show that Parnas tapped into the mortgage money almost immediately, setting off a flurry of transfers in May 2018 that helped pay for their travel over the next several months and fund dozens of campaign contributions.

Parnas characterized the burst of donations to GOP candidates as an attempt to help Global Energy Producers, the company that he and Fruman founded weeks earlier to sell natural gas to Ukraine. But those contributions — including $325,000 to a Trump-aligned super PAC — also provided them access to the top echelons of the Republican establishment. That money is now under scrutiny in the impeachment inquiry and is the target of a legal challenge by a campaign watchdog group that alleges the two men concealed the true source of the funds.

Within less than a week of getting the mortgage money, Parnas would also make four transfers, totaling $845,000, to various companies controlled by both partners. Of that, nearly half a million dollars went to an export business founded by Fruman.

Meanwhile, Parnas embarked on a whirlwind of travel and spending.

In just three weeks in July, he racked up charges in Warsaw, Los Angeles, Washington, and New York, spending thousands at each stop. There was a $3,182 charge at a glitzy nightclub in West Hollywood and more than $1,000 at two Japanese restaurants — all on the same day.

At the plush Peninsula hotel in Beverly Hills, the expenses totaled nearly $13,000, and about a week later, there were more than $6,300 at the Trump International Hotel in Washington.

As Parnas appeared to travel the globe, so did Fruman, whose spending was not at the same pitch, but who was also a frequent visitor to Kyiv, records and interviews show. In July, he made a $4,250 payment to the Hilton International Hotel in Kyiv. After that, it was on to the Loews Hotel in New York City.

There were also dozens of cash withdrawals on Parnas’s card — nearly $42,000 last year alone — at banks and ATMs in cities like Kyiv, New York, and Miami. The records do not reveal which payments were related to Parnas and Fruman’s energy business and which were related to the pair’s efforts to turn up information to help Trump, but they spent at least $203,000 between July 2018 and April of this year.