Prime-ministerial power is not a fixed quantity. It is built, and lost, by seven factors. This is the chart, the evidence, and the Paper 2 questions it answers.
Ask whether the Prime Minister is too powerful and the honest answer is: it depends. The office handed Tony Blair near-total command in 1997 and left Rishi Sunak almost helpless in 2024. Nothing in the job description changed. What changed were the seven factors that decide how much room a Prime Minister actually has.
Those factors are Majority, Mandate, Media, Big Beasts, Party Control, Opposition and Events. Scroll on, and the chart will teach you how to read it. Below that sits the dated evidence behind every cell, the seven named Paper 2 questions this topic is examined through, and two questions worked all the way to a plan.
Green is a factor working for the PM's power, red against it, amber genuinely mixed. The chart stays pinned while the steps walk you through it.
Already the chart is not one colour. No Prime Minister scores green on every factor, and none scores red on every factor. Power is uneven: it is built up or worn down one factor at a time, and it differs from one PM to the next and even across a single PM's time in office.
A 179-seat majority, a clear "Change" mandate, the Murdoch newspapers supporting him and a weak Conservative opposition. Six of the seven factors are green. This is a Prime Minister with very few limits on what he could do.
A shrinking majority, no personal election win, hostile newspapers, a divided party and Labour twenty points ahead in the polls. Six of the seven factors are red. This is the same office Blair held, in the hands of a Prime Minister who could do very little with it.
Comparing the two rows shows the central point. A Prime Minister's power depends on circumstances, and it changes when those circumstances change. The office gives every PM the same formal job; the seven factors decide how much they can actually do with it. This is the main argument to make in any Paper 2 answer on PM power.
Take one factor: Majority. A large majority strengthened Johnson, Blair, Thatcher and Starmer, because they could still pass laws when some of their own MPs voted against them. A shrinking majority weakened Sunak. One column gives you one argument supported by five Prime Ministers.
Events are the one factor a Prime Minister cannot choose: wars, recessions, scandals and emergencies all arrive without warning. What decides their power is not the event itself but how the Prime Minister responds to it. A response the public, the Cabinet and the party judge to be strong raises the PM's standing with all three; a response judged weak lowers it. Thatcher's handling of the Falklands War strengthened her; Johnson's handling of Partygate weakened him.
Examiners reward comparison, not a list of PMs. Read across a row, down a column, and you are already comparing - which is exactly what a Level 5 answer does.
| Maj | Mand | Media | Beasts | Party | Oppo | Events | |
|---|---|---|---|---|---|---|---|
| Starmer2024- | + | ~ |
- | ~ |
~ | ~ |
- |
| Sunak2022-24 | ~ | - |
- | - |
- | - |
- |
| Johnson2019-22 | + | + |
+ | ~ |
~ | + |
~ |
| Blair1997-2007 | + | + |
~ | ~ |
~ | + |
~ |
| Thatcher1979-90 | + | + |
+ | ~ |
~ | + |
~ |
Tap a Prime Minister to open the dated evidence behind their row. Every factor carries a named example you can quote straight into an essay.
A 174-seat majority in 2024 (Labour 411, Conservatives 121). He can lose dozens of backbenchers and still legislate, the opposite of Sunak's final year.
Huge in seats, thin in votes: Labour won on just 33.7%, the lowest winning vote share in post-war history. Critics call the mandate shallow and built on Tory collapse.
Seen as competent, but the right-wing press has been hostile from day one. The Lord Alli freebies row (2024) and the Mandelson ambassador row (2026) each ran for weeks.
No open rival yet, but several wait: Andy Burnham, the popular Manchester mayor who can attack from outside Parliament, and Wes Streeting, openly ambitious. Angela Rayner resigned as Deputy PM and now sits on the back benches.
Strong on paper, but the soft left has pushed back hard. Over 40 Labour MPs signalled revolt over disability benefit cuts (2026), and the Reeves Budget split the parliamentary party.
The Conservatives had their worst result since 1832, but the threat moved: Reform UK hit 27% in YouGov polling (2026), reshaping the right of British politics.
Starmer met a run of shocks early in his term: the Southport riots (2024), Trump's second term and its disruption to trade, the Iran conflict pushing inflation back up, and lasting division over Gaza. His firm response to the riots, with fast court sentencing, was judged competent and steadied him. The economic shocks were harder to answer, and as the cost of living stayed high the public, the party and parts of the Cabinet grew more critical.
Inherited Johnson's 80, but it eroded to roughly 38 by the election through defections, lost whips and by-election losses. The Times tracked the steady drip.
Never won an election, and never won a members' ballot either, having lost the 2022 contest to Liz Truss. He only became PM when she imploded, and delayed going to the country for nearly two years.
Nicknamed "Drowning Street". A posh, out-of-touch image stuck. Leaving the D-Day commemorations early (2024) was widely seen as ending his campaign.
The cabinet attacked him more than it backed him. Suella Braverman's sacking produced a savage resignation letter; Boris Johnson loomed from the back benches.
Weak. The party split openly over Brexit, Rwanda, immigration and the ECHR. The Rwanda Bill votes saw the whipping operation break down repeatedly; MPs defected and lost the whip.
A recovered Labour led by 15 to 20 points for over eighteen months, sweeping by-elections in Wellingborough, Kingswood, Tamworth and Selby.
Sunak inherited several crises and was rarely judged to have mastered them. Inflation peaked at 11.1% in 2022; NHS strikes by junior doctors, nurses and consultants ran across 2023; and the mortgage-rate rise after the Truss mini-budget kept hurting homeowners. He made halving inflation a central pledge and could claim some success when it fell, but the wider sense that he could not turn the country around weakened him with voters and left his party doubting he could win.
An 80-seat majority, the largest Conservative win since 1987. It let him drive through Brexit, lockdowns and the Northern Ireland Protocol with little internal resistance.
The clearest single-issue mandate of any modern PM: "Get Brexit Done" took Workington, Bishop Auckland and dozens of other Red Wall seats.
"Boris" was a personal brand. He was skilled at using the media and at dodging it, even hiding in a fridge to avoid an interview (2019).
Tame at first, then a cascade. Rishi Sunak's resignation (July 2022) triggered over 50 ministerial resignations in 48 hours.
Strong at the start, then it collapsed. By July 2022 MPs were in open revolt over Partygate and the Pincher affair, and forced him out.
He faced Jeremy Corbyn in 2019, whose Labour lost 60 seats, its worst result since 1935. The opposition only sharpened later under Starmer.
Johnson's term was shaped as much by his responses as by the events themselves. The Covid vaccine rollout was judged a success and lifted him with the public and the party; his early support for Ukraine after the 2022 invasion was also well received. But Partygate, the parties held in Downing Street during lockdown, was judged a serious failure of honesty, and it turned the public, much of the Cabinet and finally his own MPs against him.
Two landslides then a narrower win: 179 (1997), 167 (2001), 66 (2005). The 1997 cushion passed devolution, Bank of England independence and the minimum wage with ease.
A clear "Change" mandate built on the 1997 manifesto and "education, education, education".
Strong early: The Sun switched to Labour and Alastair Campbell ran "The Grid". The "dodgy dossier" over Iraq (2003) then broke his credibility.
Gordon Brown was his greatest asset and his greatest internal threat. Robin Cook resigned over Iraq in a textbook conscience resignation (2003).
Strong early, then strained. 139 Labour MPs voted against the Iraq war (2003), the largest backbench rebellion since the 1840s; top-up fees scraped through by five votes.
Weak Conservatives through Hague, Duncan Smith and Howard, until David Cameron arrived in late 2005 and forced Blair onto the back foot.
Blair's premiership was shaped by foreign-policy events. He was widely judged to have responded well to 9/11 and to the 7/7 London bombings (2005), which strengthened his standing as a crisis leader. But his decision to join the Iraq War (2003) was judged by much of the public and the Labour party to be wrong, and it cost him a level of trust he never regained, even though he won the 2005 election.
43 (1979), 144 (1983), 102 (1987). No PM since has won three consecutive elections.
A clear "Change" mandate: curb the unions, roll back the state, privatise. British Telecom, Gas and BA were all sold.
The "Iron Lady" image, originally a Soviet insult, was embraced. Saatchi & Saatchi produced the "Labour Isn't Working" poster.
A talented cabinet that turned on her. Geoffrey Howe's resignation speech (1990) and Michael Heseltine's challenge ended her premiership.
Strong for most of her tenure, then lost. The Westland affair (1986) and the Lawson and Howe resignations drained her authority.
A weak, divided Labour, with the SDP-Liberal Alliance splitting the anti-Conservative vote and handing her landslides.
Thatcher's responses to events both made and broke her. Her firm handling of the Falklands War (1982) was judged a success and is widely thought to have won her the 1983 election, and her year-long stand in the miners' strike (1984-85) was also seen as a win. But the Poll Tax (1989-90), and the riots that followed it, were judged a serious misjudgement, and the loss of public and party confidence helped end her premiership.
Seven questions this topic is examined through. Tap each to see the key-word trap and which factors and PMs to deploy on each side.
Traps: now and too. Define what "too much power" would look like, then prove what has changed by comparing recent PMs with earlier ones. This was the 2025 Paper 2 question.
Trap: define presidentialism - spatial leadership, personal mandate, the Downing Street machine - before judging it.
Trap: "mainly" invites a balance, not a yes or no.
Trap: "the most significant" means ranking Big Beasts against the other six factors, not just describing them.
Trap: modern wants recent evidence and a contrast with the past.
Trap: since 2010 fixes the time frame. Define cabinet government against prime-ministerial government.
Trap: this is PM power seen from Parliament's side. The Majority column is the hinge.
The chart is a planning tool. Here is how it becomes a structured answer.
Six cross-cutting changes the examiner flagged. Weave them through the themes above rather than listing them.
You have read the chart. Here is the rest of the PM-power loop: test your recall, drill the framework, then practise writing it.