David Davis is to resign as shadow home secretary in a move that will shock Westminster and be a severe blow to Tory leader David Cameron.
50845
David Davis to resign as shadow home secretary
145606
Republican congressman tom Davis retiring
7469
Forward Bloc threatens to pull out ministers
1799
Peter Costello resigns from parliament
70714
Energy Secretary Steven Chu resigning
1039
David Miliband quits frontline politics
15700
Jonathan Evans MP to stand down at next election
139735
Nurses prepare to resign
99969
Romer to leave administration
38577
I might lose cabinet berth in reshuffle:
76605
Top US tax policy official to resign
82836
Census director Robert Groves leaving
31721
Resignations are taking of political responsibility
7774
Councillor thrown out of Tory party
13515
Ruth Kelly to stand down as an MP
18315
Ian Paisley to quit as First Minister
22107
Pope Benedict XVI to resign