Andy Burnham has been forced to scale back hopes of a major EU reset after Brussels signaled greater interest in closer ties with Canada.
Ursula von der Leyen has asked Canada to become the EU's first "associate member," putting Ottawa ahead of Britain in improving relations.
Labor figures are disappointed, having concluded that the EU will offer no better terms than those promised under the Conservatives.
London also remains frustrated by Britain's exclusion from the EU's SAFE defense initiative.
Source: Bloomberg