Since over 70,000 migrants streamed into the Spanish enclave from Morocco at the end of July, Sanchez has maintained he has no "solid proof" that Rabat planned the rush -- something that has not convinced opposition parties or public opinion.
Allegations picked up by the right-wing Popular Party and its leader Alberto Nuñez Feijoo have suggested that Sanchez is reluctant to confront Morocco over the surge because Rabat may be blackmailing him wi…