According to Anthony Seldon and Guy Lodge, the authors of a book on Gordon's tenure as Prime Minister, Sarah brought stability to both Gordon and his office, and was "a forceful voice in encouraging him to stay on until the very end". That end came following the 2010 General Election, which resulted in the first hung parliament since 1974. The Conservative Party led by David Cameron won the most seats, and on 11 May 2010 formed a government in coalition with the Liberal Democrats after her husband's attempts to keep Labour in power failed.