Donald Trump has said the US could "take a pass" on Ukraine peace talks if they become too difficult but added he thought there was a "good chance" of succeeding.Sir Keir Starmer discussed Ukraine with the US president in a phone call on Friday, Downing Street said, but did not give further details.Mr Trump's Secretary of State Marco Rubio had suggested that Washington could "move on" if progress is not made within days in comments after a meeting in Paris with UK, EU and Ukrainian delegations.

Donald Trump has said the US could "take a pass" on Ukraine peace talks if they become too difficult but added he thought there was a "good chance" of succeeding.Sir Keir Starmer discussed Ukraine with the US president in a phone call on Friday, Downing Street said, but did not give further details.Mr Trump's Secretary of State Marco Rubio had suggested that Washington could "move on" if progress is not made within days in comments after a meeting in Paris with UK, EU and Ukrainian delegations.