The Liberal Democrats have pulled off an extraordinary victory in the Buckinghamshire constituency of Chesham and Amersham, taking the formerly safe seat from the Tories in a byelection. In a shock result, the Lib Dem Sarah Green secured 21,517 votes, leaving the Conservative Peter Fleet trailing with 13,489, and giving the Lib Dems a majority of 8,028. The contest was called after the death of...