Evaluate the view that checks and balances are the most effective feature of the US Constitution.

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“Evaluate” requires you to weigh the effectiveness of checks and balances against other constitutional features and reach a justified judgement. For 30 marks, develop a balanced, evidence-based argument that assesses how successfully these features limit power, protect rights and allow government to function, rather than simply listing constitutional powers.

Edexcel A-Level Politics: question context and source

Specification code: 9PL0

Component: 3A, Comparative Politics: USA

Topic: 1.2, Key features of the US Constitution and their effectiveness.

The specification identifies federalism, separation of powers, checks and balances, bipartisanship and limited government. Relevant comparisons can also draw on codification, entrenchment and constitutional rights.

Supporting source: Article II, Section 2 of the US Constitution

“he shall nominate, and by and with the Advice and Consent of the Senate, shall appoint”

This provision divides responsibility for major appointments between the president and the Senate. It illustrates how checks and balances require institutions to share power rather than exercise it independently.

Edexcel A-Level Politics: indicative mark scheme

This is an original indicative mark scheme, aligned with Edexcel’s assessment framework. It is not an official Pearson mark scheme for this particular question.

Assessment objectives

Assessment objective	Marks	Application to this question
AO1: Knowledge and understanding	10	Accurate knowledge of constitutional checks and balances, alternative features and relevant examples.
AO2: Analysis	10	Explain how these mechanisms constrain power, protect rights or obstruct effective government.
AO3: Evaluation	10	Compare their effectiveness and reach supported judgements about which feature is most effective.

Edexcel requires balanced consideration of the view and its alternative. Its essay guidance caps responses that do not provide this balance at Level 2.

Indicative levels of response

These are concise paraphrases of Pearson’s level descriptors.

Level	Marks	Typical characteristics
5	25–30	Detailed knowledge, sustained analysis and convincing, consistently supported evaluation.
4	19–24	Accurate knowledge, coherent analysis and mostly justified judgements.
3	13–18	Mostly accurate knowledge, relevant explanation and some supported evaluation.
2	7–12	Some relevant knowledge, partially developed analysis and limited evaluation.
1	1–6	Superficial knowledge, limited reasoning and unsupported conclusions.
0	0	No creditworthy material.

Assessment uses a best-fit judgement. A particular number of paragraphs or examples does not automatically secure a level.

Essential distinctions

Separation of powers distributes governmental responsibilities between different branches. Checks and balances give those branches powers to restrain one another.

For example, Congress legislates, but the president can veto legislation. Congress can override that veto with the required two-thirds majority in each house. The distinction matters because separate institutions would not necessarily constrain each other without powers of intervention.

Limited government is partly an intended outcome of these arrangements. It should not be treated as entirely independent of the mechanisms that produce it.

Indicative arguments supporting the view

1. Checks and balances provide practical restraints on presidential power.

Congress can reject legislation, withhold funding, investigate executive conduct and override presidential vetoes. In January 2021, the Senate voted 81–13 to override Trump’s veto of the National Defense Authorization Act, completing the congressional override.

Evaluation: This demonstrates that the president cannot always impose their preferences, even when their own party controls the Senate. However, an exceptional bipartisan coalition does not prove that congressional restraint operates consistently.

2. Judicial review can restrain executive action.

In Biden v Nebraska (2023), the Supreme Court held that the HEROES Act did not authorise the administration’s broad student loan cancellation plan. This was a ruling about statutory authority, rather than a general prohibition on student debt relief.

Evaluation: Courts can enforce limits even when the executive considers its policy desirable. However, disagreement over judicial reasoning raises questions about unelected judges’ influence over major policy decisions.

3. Checks and balances make other constitutional protections enforceable.

Entrenched rights and federal divisions of power require institutions capable of enforcing them. Judicial review can turn constitutional principles into practical restrictions.

Evaluation: Checks and balances have a strong claim to being the most effective feature because they provide enforcement mechanisms for other constitutional rules. Nevertheless, enforcement depends on the content of those rules and the interpretation given to them.