London mayor

[DC_FC]

Why Is it that the election of a london mayor doesnt take place at the same time as the election of the party to move into number 10

[Buenchico]

Constitutional answer:
Because local government is meant to be completely independent of national government.

'Real world' answer:
Because the major political parties wouldn't want the risk of a major gaff by their mayoral candidate ruining their electoral chances in a general election. (e.g. David Cameron's spin doctors might be succeeding in convincing the electorate that he's almost a saint when Boris Johnson commits one of his frequent gaffs, thus showing the Conservative Party in a poor light).

Chris