Live updates: Labour turmoil continues
- Owen Smith has announced he is to stand for the Labour leadership
- Smith said he was the "radical and credible" leader who could take Labour back into power
- He is the second MP to enter the race to challenge Jeremy Corbyn after Angela Eagle
- On Tuesday, Labour chiefs ruled that Corbyn should automatically be placed on the ballot
- Shadow chancellor John McDonnell was filmed describing Labour "plotters" as "f****** useless"
