How national institutions share power and fight over it
National institutions rarely act alone. A bill needs both chambers of Congress to agree before a president ever sees it. A president's formal powers work through appointments, vetoes, and command of the armed forces, and each of those tools has a check attached to it. Courts review what elected officials and agencies do, while depending on precedent and appointments for their own staying power. Agencies turn broad statutes into working rules, and Congress, the president, and courts all watch how they do it.
This review moves across the whole unit: chamber structure and lawmaking, presidential power and its limits, the judiciary, the bureaucracy, and the single policy pathway that ties all four together.
The unit in one table
| Institution | Core mechanism |
|---|---|
| Congress | Bicameral lawmaking; cloture and passage are different thresholds; multiple checks on the president |
| The presidency | Formal powers under Article II combine with informal leverage and expansion through delegation and precedent |
| The judiciary | Judicial review, established in Marbury, operates through precedent, certiorari, and good-behavior tenure |
| The bureaucracy | Delegated rulemaking authority, checked by Congress, the president, courts, and internal watchdogs at once |
Congress: chambers, lawmaking, and pressures
- The House has 435 members, two-year terms, and single districts; the Senate has 100 members, six-year terms, and statewide constituencies.
- The House alone originates revenue bills and impeaches; the Senate alone gives advice and consent on treaties and nominations and tries impeachments.
- A bill passes through committee, floor action, reconciliation of House and Senate text, and presentment. Cloture needs three-fifths of the Senate for legislation, while a veto override needs two-thirds of both chambers.
- Mandatory spending is set by existing law; discretionary spending is set through annual appropriations. Pork-barrel projects and logrolling help build coalitions.
- Members balance delegate, trustee, and politico roles under pressure from party leaders, interest groups, and district competitiveness. Polarization and divided government raise the odds of gridlock.
The presidency: tools and limits
- Article II powers include appointments with advice and consent, vetoes, command of the armed forces, treaty-making with two-thirds Senate consent, and the duty to take care that laws are faithfully executed.
- Executive orders, executive agreements, signing statements, bargaining, and going public extend presidential reach but operate within existing authority and do not create independent legislative power.
- Checks include appropriations, oversight, statute revision, veto override, confirmation, impeachment (House accuses, Senate convicts by two-thirds), judicial review, and elections.
The judiciary: authority through judgment
- Judicial review comes from Marbury v. Madison, not from the text of Article III, and it operates only inside real cases with proper standing.
- Federalist No. 78 explains why courts, controlling neither the sword nor the purse, can safely be made independent. Good-behavior tenure insulates judges from electoral pressure.
- Stare decisis is a strong presumption, not an unbreakable rule. Courts can distinguish, narrow, extend, or overrule precedent. Certiorari requires four justices.
- Congress can rewrite a statute after a statutory ruling; only an amendment or a later Court reversal changes a constitutional ruling.
The bureaucracy: delegated power and shared control
- Congress delegates technical work to agencies with expertise. Rulemaking uses notice and comment; final rules can be challenged in court, where judges interpret ambiguous statutes independently under Loper Bright.
- Agencies answer to several principals at once: Congress through appropriations, hearings, and GAO audits; the president through appointments, OMB review, and executive orders; courts through judicial review; and inspectors general from within.
- Iron triangles are durable committee-agency-interest-group relationships; issue networks are broader and temporary. The civil service is primarily merit-based, while some leadership posts are political appointments.
Putting it together
A single policy can begin in Congress, be shaped by presidential priorities, become a rule through an agency, face review in court, and return to Congress for oversight or revision. Accountability is diffuse because no single institution controls the whole chain, and the same division of authority creates multiple access points for citizens and organized interests.
Strategies for the Unit 2 questions
- Identify the institution and the tool. Say which actor is at work and which power it is using, rather than naming a branch in general terms.
- Check the threshold. Simple majority, three-fifths for legislative cloture, and two-thirds for veto override, treaties, and Senate conviction are different numbers for different purposes.
- Separate statute from Constitution. Many questions turn on whether a ruling interpreted a statute or the Constitution.
- Look for simultaneous checks. Congress, the president, courts, and internal watchdogs can act on the same agency at once because they ask different questions.