The leaked recordings consist of edited fragments of phone conversations Joe Biden and Petro Poroshenko had while still in office.
The recordings were released by Andriy Derkach, an independent member of Ukraine’s parliament.
Derkach had previously aligned with a pro-Russian faction and is known to have past links to Russian intelligence.
The recordings show that Biden, as he has previously said publicly, linked loan guarantees for Ukraine to the ouster of the country’s prosecutor general in 2015.
Rudy Giuliani, who serves as Trump’s personal attorney, met Derkach during a trip to Kyiv in December.
The Biden campaign says they view the release of the tapes as a continuation of a long-standing Russian effort to hurt the former vice president, pointing to the role that RT, the Russian state-controlled news network, played in promoting the tapes.
“They heavily edited this, and it’s still a nothingburger that landed with a thud.”