Earlier on Sunday, Number 10 said Sir Keir had agreed with French President Emmanuel Macron, who will meet the US president in Washington days before the Prime Minister, on the need to show “united leadership” in support of Kyiv.
The Prime Minister will seek to position the UK as a bridge between Europe and America on his visit next week as tensions simmer after Mr Trump hit out at Mr Zelensky and White House officials met Kremlin counterparts to discuss ending the war.
The Prime Minister held his second call in three days with the Ukrainian president on Sunday, promising he would be “progressing important discussions” about Kyiv’s security on his visit to Washington.
On Sunday, Mr Zelensky said he would be ready to give up his presidency if doing so would achieve lasting peace for his country under the security umbrella of Nato, which the US has suggested is an unrealistic prospect.
Sir Keir’s visit will mark a critical moment in his leadership after Mr Trump called Mr Zelensky a “dictator” and suggested Kyiv had “started” the war.
