On his recent visit to the US, Boris Johnson “reminded” Donald Trump he “actually played an important role” in supporting and arming Ukraine against its Russian invaders, the former British prime minister said, adding that British aid to Kyiv was “enabled” by Trump’s example. Johnson made the claim about the notoriously pro-Russian former president – and brushed off mention of Trump’s impeachment for blocking military aid to Ukraine – in an interview on One Decision, a podcast hosted by Sir Richard Dearlove, a former chief of the British intelligence service MI6, and the journalist Julia Macfarlane. The episode was released on Thursday. Johnson resigned as Conservative leader and prime minister in July last year, amid scandals including Partygate, over lockdown breaches in Downing Street during the Covid pandemic. Last month, found to have misled parliament, he resigned as an MP. He has since become a columnist for the Daily Mail, a move found to have breached parliamentary rules. Trump lost the 2020 presidential election to Joe Biden, a defeat he refuses to accept, advancing the lie that it was the result of electoral fraud. Having survived a second impeachment, for inciting the deadly January 6 assault on Congress, and despite facing 71 criminal charges and the prospect of more, Trump is the frontrunner for the Republican presidential nomination next year. The two oft-disgraced ex-leaders met at an undisclosed US location in May. Johnson’s attempt to persuade Trump to back Ukraine was widely reported then. Speaking to One Decision, Johnson said: “One of my reasons for going to the United States [was] because clearly, American politics is getting into that pre-election period of ferment and I’m very concerned just to get over the message that whatever you people may be hearing, what other people may be thinking, the war in Ukraine is immensely important, and Ukrainian victory is essential, and it’s the only way out.” Republican presidential hopefuls including Trump’s nearest challenger, Ron DeSantis, have stoked controversy by appearing to question US support for Ukraine. During his own time in power, Trump was widely held to be too close to the Russian president, Vladimir Putin. Since leaving the White House, Trump has refused to commit to continuing US support for Kyiv in its efforts to expel Russian invaders, should he return to office. At a CNN town hall in May, Trump said: “Russians and Ukrainians, I want them to stop dying. And I’ll have that done in 24 hours.” On One Decision, Johnson said: “I just think it’s very important if you have a chance to talk to people like Donald Trump, just to get … over [that] I know in my heart that Ukrainians are going to win. I know they deserve to win. “And I know that America has played a crucial role in making sure that is the right outcome. I think it’s important to remind somebody like Donald Trump, you know, he actually played an important role.” Asked by Dearlove if Trump was a threat to Ukrainian chances of winning the war, Johnson said: “Don’t forget who sent the first Javelins [missiles] out. It was Donald Trump.” The US approved the sale of Javelin anti-tank missiles to Kyiv in 2018. It was later revealed that Trump blocked further military aid as part of a scheme to seek dirt on his enemies, including Biden, that resulted in his first impeachment. Macfarlane said: “It was also Donald Trump who withheld military aid to Ukraine.” Johnson said Trump’s military aid “actually enabl[ed] us in the UK in a way” to send arms to Kyiv. His recent meeting with Trump, Johnson said, produced “a very free-flowing energetic conversation, as you’d expect. And what I find, actually, with the Republican party in in the United States, is that, of course, they’re anxious about the expense, and that’s the role of Congress. [But] they strongly support the Ukrainians.” Saying his hosts should question Trump themselves, Johnson added: “My view is that whatever happens in the race for the White House I think America will be steadfast. And I think that the big geopolitical reasons for continued American support for Ukraine will be overwhelming for whoever’s there.” Asked about DeSantis’s controversial characterisation of the war in Ukraine as a “territorial dispute”, a statement the Florida governor was forced to swiftly walk back, Johnson said there was an “isolationist” element in Republican ranks but it was “ever thus”. As prime minister and after leaving office, Johnson has enjoyed warm welcomes in Ukraine. On the One Decision podcast, he was also asked about his claim that Putin threatened an attack on the UK. Putin was “creepily playful”, Johnson said, adding that the Russian president was really trying to “reframe what he’s done, which was a barbaric invasion of an innocent neighbor, as a confrontation between a nuclear-armed Nato and Russia”. Calling Biden’s stewardship of aid to Kyiv “outstanding” and “amazing”, the former prime minister also said allies of Ukraine “all need to speed up” nonetheless.