Mr Healey refuted some of Mr Trump's recent remarks, including that Vladimir Putin "holds all the cards" when it comes to peace talks because he has already taken "a lot of territory", and that President Zelenskyy is a "dictator".
He has made clear the security of Europe is no longer the US's defence priority and has this week attacked Ukraine's president Mr Zelenskyy, suggesting he is to blame for the Russian invasion, calling him a "dictator" and saying he "better move fast or he is not going to have a country left".
The row between Mr Trump and Mr Zelenskyy comes ahead of a meeting between Sir Keir and the US president in Washington DC next week.
On Thursday, Reform UK leader Nigel Farage also broke his silence - saying Mr Zelenskyy is "not a dictator" and people should take what Mr Trump says "seriously, not literally".
The meeting will be Sir Keir's first with Mr Trump since his inauguration as US president in January, and will see Britain attempt to balance its support for Ukraine with the need to keep the White House onside as it presses on with trade tariffs.
