Voting closes at midday in the poll to elect the next leader of the Labour party.
Leicester West MP Liz Kendall (above, second from right) is among the candidates.
The candidates standing for the Labour leadership are:
- Andy Burnham
- Yvette Cooper
- Jeremy Corbyn
- Liz Kendall
Labour leadership candidate Liz Kendall has reiterated her determination to stay in the race despite calls for her to step aside.
Speaking on BBC Radio 4's Today programme, Ms Kendall insisted she still believed she could win.
"People want hope. They want something different. There are only two candidates setting out an alternative in this election from what we have been saying over the last five years, that is myself and Jeremy Corbyn."
She declined to say who her backers should vote for as a second preference in the contest, which is run under an Alternative Vote (AV) system.
The deadline for nominations for the next Labour Leadership expires today.
Leicester West MP Liz Kendall will find out for certain who she will be up against in the Labour Leadership contest as nominations close.
Shadow Health Secretary Andy Burnham and Shadow Home Secretary Yvette Cooper are also in the running.
Each candidate needs the support of at least 35 MPs.
The Labour Party politician Vernon Coaker has arrived in Burton.
The Shadow Defence Secretary has been launching Labour's campaign.
Friends family and supporters from the world of politics gathered to pay tribute to the former Chesterfield MP Tony Benn at his funeral today in Westminster. One mourner described him as a man who had inspired ideas humour and hope for generations.
Figures from across political divide have arrived in Westminster for the funeral service of Tony Benn.
Mr Benn's coffin arrived at St Margaret's Church to applause and some tears as politicians and activists made up the amassed crowds.
Arthur Scargill, Rory Bremner, Lord Heseltine, Gerry Adams and Andrew Mitchell are among those at the ceremony, ITV News' Political Correspondent Carl Dinnen reports.
Devoted crowds are waiting outside in Westminster as the funeral service of former Labour cabinet minister Tony Benn gets underway.
One banner describes the left-wing MP as "truly irreplacable", while another calls him "our Tony Benn".