- Pannick, Lord 1
- Parliament Act (1911) 1, 2, 3, 4, 5, 6, 7
- Parliament Act (1949) 1, 2, 3, 4, 5
- Parliament Bill (1968) 1
- Parliamentary Constituencies and Voting Act (2011) 1
- parliamentary procedure 1, 2
- patriotism 1
- Pattison, Michael 1
- Payne, Denis 1
- Peerage Act (1963) 1
- Peierls, Rudolf 1
- ‘People’s Budget’ 1, 2
- Perrin, Sir Michael 1, 2
- personal histories 1
- Petty, Alan 1
- Pickthorn, Sir Kenneth 1
- Pincher, Chapman 1
- Pliny the Elder 1
- Plowden, Lord Edwin 1, 2
- PMQs (Prime Minister’s Questions) 1, 2
- Polaris missiles 1, 2, 3
- Policy Unit 1
- political language 1
- political lives 1
- political weather 1, 2, 3
- ‘Politics and the English Language’ (essay) 1
- Portal, Lord 1
- Poseidon missiles 1
- Powell, Enoch 1, 2, 3, 4
- predictive value of history 1
- prime ministers
- assessing 1
- functions of 1
- power of 1, 2
- vulnerability of 1, 2
- Prime Minister, The (novel) 1, 2, 3
- Prime Ministers and the Rule Book (book) 1
- Pym, Frances 1