The chairmen of the House committees leading impeachment proceedings on Thursday subpoenaed documents and called for testimony from a pair of Soviet-born associates of Rudy Giuliani who were busted the night before on campaign finance charges.

The businessmen, Lev Parnas and Igor Fruman, are suspected of conspiring to funnel foreign money to US political candidates.

In a letter to the pair’s lawyer, former Trump attorney John Dowd, Reps. Adam Schiff, Eliot Engle and Elijah Cummings, heads of the Intelligence, Foreign Affairs and Oversight committees, respectively, demanded that the “two business associates of Rudy Giuliani” supply documents by Tuesday that they’ve refused to hand over voluntarily.

“Your clients are private citizens who are not employees of the Executive Branch. They may not evade requests from Congress for documents and information necessary to conduct our inquiry. They are required by law to comply with the enclosed subpoenas,” they wrote.

The lawmakers said they were probing whether Trump jeopardized national security by asking Ukraine President Volodymyr Zelensky during a July phone call for “a favor” — information about political rival Joe Biden and his son Hunter Biden.

The president has repeatedly called the call “perfect” and asserted that he had done nothing wrong in his calls for Ukraine and China to probe the Bidens for alleged “corruption.”

He has also called the impeachment proceedings illegitimate and said the White House would not cooperate in the House’s probe.

But the chairmen demanded that the pair not only turn over the documents but be ready to testify before them.

The committees sent letters to Parnas and Fruman late last month requesting documents by this past Monday, and appear for depositions on Thursday.

But Dowd replied that he did not have enough time to produce the documents and skipped the deadline.

Parnas is a Ukrainian businessman, and Fruman is a real estate investor who was born in Belarus, both former republics in the Soviet Union.

Parnas and Fruman conspired to “funnel foreign money to candidates for federal and state office,” according to a federal court filing in New York.

The two men made illegal contributions using straw donors, according to the indictment.

Dowd declined comment on the charges.

The two men had been planning to fly to Vienna on Wednesday night, according to a source familiar with the matter, and were arrested at Dulles National Airport, Fox News reported.

The Wall Street Journal described the two men as donors to a pro-Trump fundraising committee who helped Giuliani’s efforts to investigate Biden with the help of officials in ukraine.

According to FEC records, a company Parnas formed contributed $325,000 in May 2018 to pro-Trump super PAC America First Action.

Giuliani told Fox News Thursday that he represented Parnas and Fruman on a separate matter and called their arrest and indictment “timing suspect,” adding that he “will reveal relevant facts very, very shortly.”

Giuliani, Trump’s personal lawyer, acknowledged that the pair “logistically helped” him gather evidence against Hunter Biden, and that they helped connect him with former Ukrainian top prosecutors Viktor Shokin and Yuriy Lutsenko.