Keir Starmer's push for fresh Russia sanctions have hit a Trump roadblock after the US president complained they 'cost us a lot of money'.
The PM has been talking up the prospect of 'squeezing' Vladimir Putin at the G7 summit in Canada this week.
But Mr Trump has struck a starkly different tone, suggesting during the gathering that the dictator should not have been ejected from the powerful group of nations.
Speaking alongside Sir Keir overnight, Mr Trump was asked about ramping up sanctions and replied: 'Well Europe is saying that, but they haven't done it yet.
'Let's see them do it first.'
