Two former party leaders and a former chancellor called for a ceasefire after Boris Johnson’s allies in No 10 accused Sunak of “treason” for prompting the prime minister to quit. The tax, which Sunak and Johnson have long been at odds with, is becoming the most divisive issue in the contest. Sunak had refused to cancel the planned corporation tax increase, which is due to come from next April. Yesterday Sunak’s leadership rivals turned on him after he urged the party not to believe his “fairy tale” promises of higher spending and lower taxes. The former chancellor is
