As the ballot boxes head back into storage following the London Mayoral and Assembly elections, attention now turns towards the General Election. With Sadiq Khan confirmed as Mayor for a record third term, will the polls be proved right, and see him joined later in the year by a Labour Government?

For the whole of his time as Mayor, Khan has only ever had a Conservative Government in Westminster. Both his predecessors had periods when their own parties were in power in Westminster, with both saying they got more done as a result.