Joe Biden speaks in critical and partisan terms of the incoming Trump administration in a new leaked call to the President of Ukraine unveiled Wednesday.

In the call, conducted in November 2016 a week after then-candidate Trump’s election victory, Biden bashes the incoming administration to the foreign leader, Ukrainian President Petro Poroshenko. Biden assails the Trump transition team as incompetent, turning down the idea of visiting the country before the January transition before Trump is “fully briefed” on matters related to Ukraine.

In a second call, Biden asks for Poroshenko to describe his conversations with incoming President Trump, going to to speak of Trump in more dismissive terms. He describes Trump as a “dog who caught the car, and who doesn’t know what to do.” Not quite a “dog-faced pony soldier,” but definitely not an appropriate way for an outgoing vice president to describe an incoming president to a foreign leader.

A Ukrainian comedian originally released the calls, suggesting questionable operational security within the conversations of Joe Biden and Poroshenko. Biden has a lengthy history of ethical questions regarding his relationship with Ukraine, including looking the other way as his son Hunter secured an extremely lucrative position at a Ukrainian oil company without any experience whatsoever in the energy industry.

Biden himself would later go on to demand the firing of a Ukrainian prosecutor who was investigating corruption allegations against the younger Biden, a clear conflict of interest Biden merely dismissed when he spoke openly of securing the prosecutor’s firing at a Council on Foreign Relations public event.

This is a totally inappropriate way for a Vice President to speak to a foreign leader, and the public should be concerned about how Biden plans to conduct diplomacy should he be elected President.