In reality, Facing withfiercecompetition, in order tofight forlimitedmarketshare, the televisionchannels have also settheir ownstrategies in succession.
The BBC's Will Grant in Mexico says that the apparently mutual decision to split with the traditional left suggests Mr Lopez Obrador does not have wide support for continuing a long-term fight against the inevitable succession of Mr Pena Nieto to the presidency.