The headline function and the seat of gridlock: the House moves on simple majorities under the Rules Committee; the Senate needs 60 votes for cloture, so almost all legislation runs through the filibuster. Major laws now pass mainly through reconciliation windows of unified government.
Article I sets simple bicameral passage; the 60-vote cloture threshold is Senate rule, not constitutional text, and it converts almost all legislation into a supermajority requirement the framers never wrote. Budget reconciliation - simple-majority passage for certain budget bills - exists precisely as a workaround for a rule the design never contained.
The 116th Congress (2019-21) enacted around 344 public laws, the lowest modern figure, and recent congresses have hovered near the same level. Add the 35-day shutdown of 2018-19, the longest in US history, and continuing-resolution brinkmanship through 2024-25: the lawmaking function is where the "broken branch" critique is strongest.
Party-line voting now exceeds 90% in most years, and ambitious legislation passes only in unified-government windows - the ACA in 2010, the Tax Cuts and Jobs Act in 2017, the Inflation Reduction Act in 2022, each by one party alone. Cross-party deals of the Reagan-O'Neill kind are now historical.
The negative power still works: what Congress will not pass, a president can only do by executive order, and orders die with the presidency - Obama's post-2010 pivot proved it, and Trump's reversals confirmed it. Refusing to legislate is itself a check, even when passing legislation has seized.
The House moves on simple majorities with the Speaker and Rules Committee controlling the floor; the Senate runs on unlimited debate ended only by 60-vote cloture. The same bill faces two entirely different procedural worlds - which is why House-passed legislation routinely dies in the Senate without a vote.
Congressional approval has hovered around 20% for two decades, and gridlock is the core complaint: shutdowns, debt-ceiling crises in 2011 and 2023, and government funded by emergency measure year after year. Members now run against the institution they sit in.
Broken by any historical comparison: the lowest law counts on record, supermajority thresholds the design never set, and budgets passed by brinkmanship. The strongest essay line: Congress is broken at legislation and decisive at confirmation - the verdict on "the branch" depends on which function you test.
The House represents districts every two years; the Senate gives every state two seats regardless of population. Both claims to representativeness are contested - gerrymandered districts on one side, Wyoming equalling California on the other.
The framers built two constituencies deliberately: a House apportioned by population on two-year terms, close to the voters, and a Senate of two seats per state on staggered six-year terms, insulated from immediate passions. The Connecticut Compromise of 1787 still runs exactly as written.
Representation is not a function gridlock can paralyse - members represent whether or not bills pass. The connection runs the other way: safe seats and primary-driven selection produce members rewarded for blocking, which feeds the gridlock scored elsewhere on this grid.
Gerrymandered districts pre-decide most House seats, so the real contest is the primary - and primary electorates are the most partisan voters. Members vote with their leadership over 90% of the time, whatever their district's general-election preferences: the delegate model has been displaced by the party model.
Representation does not check the president directly, but it sets the conditions for every check that does: members chosen by primary electorates have strong incentives to defend a same-party president and attack an opposing one. The representational distortion upstream explains the partisan checking downstream.
The malapportionment is built in: California has 52 House seats to Wyoming's one, but both states have two senators - giving Wyoming voters roughly 70 times California's per-capita Senate weight. Article V entrenches it: no state can lose equal Senate representation without consent.
The standing paradox: congressional approval sits around 20%, yet House incumbents win at rates around 96% - voters despise the institution and return their own member. The paradox is itself a usable AO2 point on whether re-election rates measure representation or just districting.
The structure works as designed; the inputs have been distorted around it. Districts drawn by partisans, contests decided in primaries, and a Senate map that weights small states ever more heavily as population concentrates - representation is intact on paper and warped in practice.
Committee hearings, subpoenas and investigations - the everyday scrutiny of the executive. Sharp under divided government, soft under unified government: oversight has become a partisan instrument with real teeth only when the other party holds the gavel.
Oversight is implied rather than enumerated - the power to legislate and appropriate carries the power to investigate how laws and money are used - and Congress has exercised it since the first Congress. Committee hearings, investigations and subpoenas are the working machinery.
Oversight runs on committee gavels, not floor votes, so legislative paralysis does not stop it - the January 6 Select Committee (2021-23) conducted extensive public hearings through a Congress that could barely legislate. Hearings are the function gridlock cannot reach.
Oversight intensity tracks the party calculus: sharp when the other party holds the White House, soft when your own does. Both parties have used investigations as political weapons, and witnesses now regularly defy subpoenas with limited consequences - the tool works as hard as party interest wants it to.
Hearings, subpoenas and investigations impose real political cost on an administration - the January 6 Committee shaped the public record of the Capitol attack, and Senate Judiciary scrutiny shadows every judicial nomination. The check is informational and reputational rather than binding, but it is not nothing.
Both chambers run parallel committee systems doing essentially the same scrutiny work, so the House-Senate contrast that dominates legislation and confirmation largely disappears here. The variable is party control of the gavel, not which chamber holds it.
The UK pair on the scrutiny grid: congressional committees carry subpoena power, while UK select committees can recommend but cannot compel - the structural reason US oversight can bite harder when it chooses to.
The public reads high-profile investigations as partisan theatre as often as scrutiny - each party's base sees the other's hearings as persecution and its own as accountability. Defied subpoenas without consequence deepen the impression that the process is performance.
Mixed: the machinery still functions - hearings happen, records are built, nominees are examined - but its credibility is contested and its intensity is partisan. Score it between the purse (still decisive) and impeachment (switched off): working, but only as hard as party interest drives it.
Revenue bills originate in the House; nothing is spent without appropriation. The purse still bites - shutdowns and debt-ceiling standoffs are the purse used as a weapon - but brinkmanship has replaced budgeting.
Revenue bills originate in the House and nothing is spent without appropriation - Article I verbatim, and still operating. The appropriations power was the framers' core hold for the legislature over the executive, and the text has not moved an inch since 1787.
The 35-day shutdown of 2018-19 was the longest in US history; debt-ceiling crises hit in 2011 and 2023; and continuing resolutions have replaced regular appropriations year after year. The purse still operates - but as recurring emergency rather than budget process.
Shutdowns and debt-ceiling standoffs track divided government almost perfectly - 1995-96 under Clinton, 2013 under Obama, 2018-19 under Trump. Under a trifecta the purse goes quiet; the weapon is drawn when the parties split the branches.
No appropriation, no programme: this is the one congressional power no president can route around, because executive orders cannot conjure money. Even the defenders of shutdown brinkmanship have a point - a shutdown is proof the legislature's hold over the executive still exists.
The House's origination power gives it the first move on revenue, and House majorities have used budget pressure as their principal weapon against opposing presidents. The Senate then applies its own 60-vote arithmetic - so a budget must survive both chambers' distinct choke points.
Shutdown brinkmanship is a public-trust disaster: federal workers unpaid, agencies impaired, and the spectacle of a government that cannot fund itself - repeated. The cost lands on the institution's standing even when one party wins the standoff.
Still decisive - the hardest check Congress holds and the one function no president can bypass - but exercised as a weapon rather than a budget process. The honest verdict: the power works; the institution wielding it has stopped doing the routine budgeting the power was designed for.
The Senate's advice and consent on justices, judges and officers. The Garland blockade (2016) and the Barrett confirmation (2020) showed the modern rule: outcomes turn on which party controls the Senate, not on the nominee or who holds the presidency.
Advice and consent was designed as the Senate's considered judgement on nominees; it now runs as a calendar power of the majority party. The 2016 refusal to hold hearings for Merrick Garland was not a vote against a nominee - it was a decision that no nominee of that president would be processed at all.
Confirmation is the function that grinds on when everything else stops: judicial and cabinet confirmations proceed on simple majorities (the nuclear option removed the filibuster for nominations), so a 51-seat majority confirms regardless of legislative paralysis. Where legislation has slowed, confirmation has become the durable expression of Senate power.
Garland 2016 and Barrett 2020 are the controlling pair: the same Senate Republican majority blocked one election-year nominee for nine months and confirmed another eight days before an election. The variable was party control of the chamber, not principle, nominee or president.
This is the one congressional power the president cannot route around - there is no executive-order substitute for a confirmed justice or cabinet secretary. A hostile Senate can block appointments wholesale, as 2016 proved; a friendly one waves them through, which is the check's partisan limit.
Confirmation belongs to the Senate alone - the House has no role in appointments at all. It is the clearest case of the chambers' exclusive powers mattering: control of 51 Senate seats shapes the Supreme Court for a generation, whatever happens in the House.
Comparison hook: UK senior judges are chosen by an independent appointments process with no legislative vote, which is why the UK has no Garland-Barrett politics to match this row.
The Garland-Barrett sequence, televised confirmation battles, and the 6-3 Court that followed feed the public perception of a politicised judiciary - the confirmation wars damage trust in two institutions at once, the Senate that fights them and the Court that results.
Powerful - arguably the most consequential thing the modern Senate does: Garland 2016 and Barrett 2020 produced the majority that delivered Dobbs (2022) and Callais (2026). But it is power exercised as a partisan instrument, which is exactly the grid's overall judgement in one function.
The House impeaches, the Senate tries, conviction needs two-thirds. Trump 1's two impeachments and two party-line acquittals are the modern record: the constitutional removal power has never yet removed a president, and polarisation has made conviction practically unreachable.
The House impeaches by majority; the Senate tries, with conviction needing two-thirds of senators present. The cases on record - Johnson 1868, Clinton 1998, Trump 2019 and 2021, Mayorkas 2024 - have never once ended in conviction: the text works, but the outcome the text envisages never arrives.
Impeachment is not blocked by gridlock - when the House majority wills it, articles pass and a Senate trial follows, as happened twice in fourteen months against Trump 1. The constraint sits at the far end: the two-thirds conviction threshold, not the procedure.
Both Trump impeachments and both acquittals ran on party lines - December 2019 over Ukraine, January 2021 over January 6. The supermajority requirement means conviction needs the president's own party, and polarisation has put those votes permanently out of reach.
No president has ever been convicted and removed, so the check operates only as a deterrent and a historical mark. Trump v United States (2024), granting broad immunity for official acts, has narrowed the criminal route too - leaving removal-by-Congress weaker than at any point since the mechanism was written.
The split design is the whole mechanism: the popular chamber accuses, the deliberative chamber tries. The framers separated accusation from judgement deliberately - and the modern record shows the design working procedurally while the political conditions for conviction have vanished.
Each impeachment is read by roughly half the public as accountability and by the other half as partisan combat - the process now confirms each side's prior view rather than settling anything. Two trials, two acquittals, and no minds changed is a poor return in public trust.
The removal power polarisation switched off: four presidential impeachments, zero convictions. In an essay, set it against confirmation - the same Senate that cannot convict at two-thirds confirms decisively at 51, which is the cleanest evidence that thresholds, not willpower, decide which functions survive polarisation.