Even his shadow home secretary Diane Abbott has suggested he has a year to turn the poor polls around. Under either scenario, there would be another leadership contest in the next few years. Those on the left would want to see Mr Corbyn replaced by a candidate with similar politics. Leadership rules But under Labour's current rules, a Corbyn ally might struggle to get the support of enough MPs to enter the race. If, however, the threshold for getting on the ballot were to reduce from 15% of MPs to 5% then a left candidate would almost certainly exceed it and the increasingly left-wing grass-roots

...