In June 2016, Corbyn said he supported the United Kingdom staying in the European Union.
After the United Kingdom voted on leaving the European Union, many Labour leaders wanted Corbyn to resign.

After the referendum, many members of Corbyn's Shadow cabinet resigned because they did not like Corbyn's leadership.
Hilary Benn called Corbyn to tell him that he had "lost confidence" in his leadership.
Corbyn later asked for his resignation from the Shadow Cabinet on 26 June.
Heidi Alexander resigned from the Shadow Cabinet hours later, followed by Gloria de Piero, Ian Murray, Lilian Greenwood, Lucy Powell, Kerry McCarthy, Seema Malhotra, Vernon Coaker, Charlie Falconer, and Chris Bryant.
Other Shadow Cabinet Ministers, including John McDonnell, Andy Burnham, Diane Abbott, Jon Trickett, Angela Smith, Emily Thornberry and Lord Bassam of Brighton have either supported Corbyn's leadership directly or have said that it was not a good time for a "rebellion".
By mid-afternoon 27 June 2016, 23 of the 31 shadow cabinet members had resigned their roles as did seven parliamentary private secretaries.
In June 2016, Corbyn said he supported the United Kingdom staying in the European Union. After the United Kingdom voted on leaving the European Union, many Labour leaders wanted Corbyn to resign.
After the referendum, many members of Corbyn's Shadow cabinet resigned because they did not like Corbyn's leadership. Hilary Benn called Corbyn to tell him that he had "lost confidence" in his leadership. Corbyn later asked for his resignation from the Shadow Cabinet on 26 June. Heidi Alexander resigned from the Shadow Cabinet hours later, followed by Gloria de Piero, Ian Murray, Lilian Greenwood, Lucy Powell, Kerry McCarthy, Seema Malhotra, Vernon Coaker, Charlie Falconer, and Chris Bryant. Other Shadow Cabinet Ministers, including John McDonnell, Andy Burnham, Diane Abbott, Jon Trickett, Angela Smith, Emily Thornberry and Lord Bassam of Brighton have either supported Corbyn's leadership directly or have said that it was not a good time for a "rebellion". By mid-afternoon 27 June 2016, 23 of the 31 shadow cabinet members had resigned their roles as did seven parliamentary private secretaries.
Jeremy Corbyn