Former US vice-president and White House hopeful Joe Biden “brazenly lied” about supporting anti-corruption efforts in Ukraine while actually hindering them, according to a new hard-hitting documentary film.

US President Donald Trump was impeached in the House of Representatives based on the narrative that he interfered in Ukrainian domestic affairs for personal political gain – but it was Biden himself who interfered while he was Barack Obama’s deputy, according to ‘UkraineGate: Inconvenient Facts.’

The documentary was produced by French investigative journalist Olivier Berruyer, founder of popular anti-corruption and economics blog Les Crises.

Biden publicly boasted about using US and international aid as leverage in 2015 to get prosecutor Viktor Shokin fired and replaced by Yuriy Lutsenko, who was an interior minister in 2005-2006 but was later convicted by a Ukrainian court for corruption. After the 2014 Euromaidan coup the sentence was quashed.

Those interviewed in Berruyer’s film describe Lutsenko as a “crook” who was “abusing his office,” a man who “does not have any moral values and principles,” and who had done “nothing” to fight corruption while in his post.

"Our investigation and its many powerful testimonies prove that Joe Biden lied brazenly and misled many people" when he claimed Shokin's replacement was “someone solid,” says Berruyer.