At only 11 days he has lost a seat in a by-election faster than any prime minister since Asquith in 1908 (16 days).
L George: 1109
Cameron: 919
Attlee: 916
Thatcher: 902
Churchill: 714
Heath: 342
Brown: 330
C-Bann: 241
Callaghan: 213
MacDonald: 191
B Law: 131
D-Home: 118
Major: 99
Wilson: 97
Chamberlain: 55
MacMillan: 35
Baldwin: 30
Balfour: 17
Asquith: 16