The electoral landscape of Britain
The Scottish National Party go into the 2016 elections with 64 seats, a majority of one.
The parties enter the 2016 elections with the Conservative Party holding 16 Police Commissioners and Labour holding 13.
In 2012 the newly elected mayors of Liverpool, Bristol and Salford were won by 2 Labour Party and 1 Independent candidate.
Of the 124 English Councils with elections in May, the Labour Party hold 58 councils, Conservatives 40, and 23 have No Overall Control.
The parties enter the 2016 elections with the DUP's 38 seats and Sinn Féin's 29 seats as the two largest parties.
The Labour Party go into the 2016 elections with 30 seats, exactly half of the Assembly.
The Labour Party go into the 2016 elections as the biggest party with 12 seats.
In four London Mayor elections to date, two have been won by Boris Johnson (Conservative) and two by Ken Livingstone (Independent/ Labour).