High profile left winger Zarah Sultana has quit Labour and vowed to launch a new political party with Jeremy Corbyn. That, however, seems to have come as news to him.

LONDON (Reuters) -The former Labour leader Jeremy Corbyn announced on Friday he was in talks to start a new political party because Prime Minister Keir Starmer's government had "refused to deliver the change" that voters expected during its first year in office.

The same political concern animates the reluctance of the Corbyn camp and the Sultana camp’s efforts to bounce him into action: a desire not to let mass social opposition in the working-class and youth burst the banks of Labourite politics.