Election Mechanics

Elections in A House Divided run perpetually. Every office has continuous cycles: a cycle resolves, the next one spawns immediately, seats never sit vacant. This page is the top-level reference for how elections work: phases, timing, scoring, vote math. Deep dives for primaries, generals, and country-specific rules get their own pages.

The two phases#

Every election has two phases:

1. Primary phase: intra-party competition. Candidates from the same party compete for one nomination slot. Resolution uses a primary score (no votes accumulate). Highest score per party advances.
2. General phase: inter-party competition. Nominees from different parties compete. Votes accumulate turn by turn; the final 4 turns land 30% of the pool.

When the general resolves, winners take office and the next cycle spawns.

Duration by race type (US)#

All durations are in real hours = game weeks.

|| Office | Total | Primary | General | | --- | --- | --- | --- | | House | 96h (2 game years) | 48h | 48h | | Senate | 288h (6 game years) | 240h | 48h | | Governor | 192h (4 game years) | 144h | 48h | | State Senate | 192h (4 game years) | 144h | 48h | | President | 192h (4 game years) | 144h | 48h |

Senate seats are split into three classes per state, staggered roughly a third of the 288h cycle apart, so one-third of the Senate is up for election at any given time.

UK, DE, and JP use different cycle lengths; see each country hub for specifics.

The primary score (state races)#

Primary scores go up to 100 points across four components, then a final infamy penalty applies:

Final score = raw * (1 - 0.05 * infamy/100), a 5% reduction at infamy=100.

Of the 40 alignment points, 25 measure how closely you match your state's politics and 15 measure how closely you match your party platform. State match is the bigger factor. If a state has no cached lean, alignment falls back to a single 40-point check against the party (preserving the pre-rework formula).

NPP candidates get a 50% primary-score multiplier when at least one player is in the same party's primary: a 50-point NPP lands at 25, which makes competent player candidates heavy favorites. NPPs aren't subject to the infamy penalty.

The primary score (presidential)#

Presidential primaries are national, so they weight party platform and national reach instead of state position:

Same infamy penalty applies on the final score. Alignment stays dominant, but Favorability was repriced from 10 to 25 points so the primary selects for roughly what the general election rewards, and parties stop nominating candidates the electorate has already rejected.

Presidential primary stagger waves (the final 6 turns of the primary) use a delegate accumulator. NPPs in stagger waves receive an extra 0.6 multiplier on top of the usual handicaps when a player is in the same party.

Vote accumulation (general)#

During the general phase, votes accumulate each turn via the Total Appeal Pipeline (also used by polling and NPP dropout calculations).

Per-turn weighting#

A three-tier closing surge, not a flat split:

• Early band: 50% of the pool spread over every turn before the ramp band.
• Ramp band: the 8 turns before election day get 20% of the pool.
• Final band: the last 4 turns get 30% of the pool.

In other words, the last 4 turns are worth ~30% of the entire election. If you're within a few points going into the last day, every campaign and ad action in those 4 turns compounds into the heaviest-weighted snapshots. Very short races (4 turns or fewer) spread the pool evenly instead.

The total appeal pipeline#

For each demographic group, for each candidate, per turn:

1. Reach: a sqrt curve on political influence, capped at 1.0 once influence reaches 100. State and presidential general elections both use this curve. Presidential primaries use a gentler diminishing-returns curve instead, leaving more room for Support, Favorability, and Org to compete.
2. Appeal (per group): 25 * ((50 - |econDiff|*5 - |socialDiff|*5) / 50)^1.5 + APPEAL_POSITION_FLOOR(0.5) + DIRECTION_BONUS(tribal, up to +10) + reach * 12.5. Power-curve position scoring (exponent 1.5, softened from the legacy squared curve) with a floor, directional bonus, and influence multiplier. Position alone maxes at 25.5, directional bonus at 10 (5 per axis, both axes aligned), influence at 12.5 -- theoretical ceiling around 48, though the position+direction terms are the dominant share in practice.
3. Approval scalar: (effectiveFavorability / 100) ^ 0.8, where effectiveFavorability = favorability + groupApproval * 0.5 (clamped 0-100). 0% effective favorability = 0 votes. The power curve softens differences in the middle while preserving both endpoints.
4. Party org scalar: a normalized share model, (partyOrg / totalStateOrg)^0.2. Diminishing returns: a 3:1 org lead yields only ~1.25:1 weight. Ranges from 0 (no presence in a populated state) to 1.0 (monopoly), or a neutral 1.0 everywhere when the state has no org data at all. Primaries use a uniform neutral 1x instead (intra-party org cancels). Presidential races use the same normalized-share curve, no separate crowded-field damping.
5. Infamy scalar: 1 - 0.05 * (infamy/100). Player characters with high infamy lose up to 5% of their per-group weight. NPPs aren't affected.
6. Turn pool scaled by party strength modifier:
   • State races: (1 + (stateGovernmentApproval/100 - 0.5) * 0.2) * officeStrength. At 50% approval the modifier is 1.0x; at 100% it is 1.1x; at 0% it is 0.9x.
   • Presidential races: (1 + (stateGovernmentApproval/100 - 0.5) * 0.5) * officeStrength. At 50% approval the modifier is 1.0x; at 100% it is 1.25x; at 0% it is 0.75x.
7. Group-level allocation: Each group contributes to the turn pool proportional to its size. Within each group, candidates split that contribution by relative (appeal * reach * approval * partyOrg * nppPenalty * infamyMult).
8. Votes summed across all groups. That's your turn total.

Office strength multipliers:

• Governor: 1.0
• State Senate: 0.85
• House: 0.9
• Senate: 0.8
• President: 1.0

Because the approval modifier is a flat +/-10% around the base for state races and +/-25% for presidential races, presidential elections feel state approval much more strongly.

NPP general weight penalty#

In general elections where at least one player is in the race, NPPs receive an 0.8x weight penalty on their per-group vote weight. This is separate from the 0.5x primary-score penalty and applies only during the general phase. It ensures NPPs remain competitive but lose their structural advantage over active players.

FPTP vs RCV: the spoiler effect#

Most states use First Past the Post (FPTP). A few run Ranked Choice Voting (RCV). This is a state-level legislative choice.

In FPTP states, after the per-turn group allocation:

• For each third-party candidate, 4% * (their group-level votes) is drawn from the ideologically nearest major-party candidate and transferred to the third party.
• In presidential races, the rate is halved to 2%.
• "Nearest" = Manhattan distance on the econ/social grid.
• Major parties are determined per region: Democrat/Republican in the US, Labour/Conservative in England, SNP/Labour in Scotland, etc.
• In presidential races only, the transfer is additionally organization-aware: a third party with stronger state org than the nearest major party amplifies the bleed (factor 0.25x-2x). State-level races (House, Senate, Governor, State Senate) do not apply this org-aware adjustment.

This models real-world spoiler dynamics: a Green candidate bleeds Democratic votes, potentially handing the seat to the Republican.

In RCV states, no spoiler adjustment applies. Third parties compete on equal footing. Switching a state from FPTP to RCV requires legislation.

Reg, support, and swing-flow mechanics#

The general-election pipeline includes three swing-flow factors that modulate how votes move between parties:

1. Registration resistance multiplier: regResistanceMultiplier = 1 + 0.3 x (Reg / 100). Range 1.0x-1.3x. Higher own-registration makes the party harder to peel away through persuasion. Independents and parties without a registration entry get neutral 1.0x.
2. Support mood multiplier: supportMoodMultiplier = 0.6 + 0.8 x (support / 100). Range 0.6x-1.4x with neutral 1.0x at support=50. Captures short-term candidate mood / momentum (debate performance, scandals, endorsements). New candidates without a stored support value default to 1.0x.
3. Transferable share: The fraction of a party's vote pool that is open to persuasion in a given turn. Base transferableShare is scaled by regResistanceMultiplier (higher Reg = smaller transferable pool) and candidate persuasionResistance (some candidates have innate resistance to being peeled away from their base party).

These factors mean a candidate with high Support, low opponent Registration, and low persuasion resistance can swing larger vote shares per turn than one facing entrenched opposition in a high-Reg state.

Two more swing-flow drivers matter for down-ballot strategy:

4. Coattails: a sitting executive's approval swings a nominal-share multiplier for their own party in every eligible down-ballot general, governor coattails at state scope, presidential coattails at national scope (US only for now). A popular incumbent lifts their whole party's ticket; an unpopular one drags it.
5. Party-tenure fatigue: a "time for a change" drag on a party that has held the executive office for multiple consecutive terms, roughly 3.5 points per term beyond the first. It bites even a popular incumbent's party, on top of the approval-based shield.

Both apply after the base appeal pipeline and are separate from the reg/support/transferable-share factors above.

Multi-seat races#

House and State Senate (US), Bundestag constituency seats, UK Commons regions, and JP Shugiin use proportional allocation:

• Largest-remainder method distributes seats proportional to vote share.
• Minimum threshold: 20% of votes for House and Commons; 10% for State Senate and Regional Council (larger districts with more parties splitting the vote).
• 2-seat special case (House only): winner takes both unless the runner-up reaches the threshold.
• Seats estimate: updated each turn as each candidate's live vote share times the number of seats.

Candidacy rules#

• One race at a time. Active candidacies block new declarations (cancel first, then re-enter).
• Home state / region only. US home state, UK home region, DE home Land, JP home prefecture, except President, which is national.
• Party required for primaries. Independents run in the "independent" party primary (same rules as any other party). No general-phase bypass.
• Country restriction. Your character's home country must match the election's country; cross-country entry returns 403.
• Primary deadline. Declarations close when the primary window ends. Miss the window and you wait a full cycle.

Withdrawal#

You can withdraw any time before the election resolves:

• Candidate status -> withdrawn, withdrawnAt timestamped.
• Your votes are permanently removed from the tally (not redistributed).
• Your campaign document is deleted.
• You cannot re-enter the same election.

Withdrawal during a general you're losing is sometimes strategic: it frees actions for a better race next cycle. During a primary it's almost always wrong unless you're pivoting to a different office.

Suspend & endorse (presidential general)#

During the general election only, a presidential nominee may suspend their own campaign from the Campaign Manager page and endorse another active nominee:

• You stay on the ballot: this is not a withdrawal.
• Campaign operations stop: turn income, upgrades, rallies, travel, canvassing, contributions, and queued Support drips halt.
• One-time campaign-strength transfer at the moment of endorsement: 25% of your campaign strength is debited from you and credited to your endorsed nominee. This is a single transfer; no per-turn campaign-strength transfers occur after this.
• Org boost: 25% of your per-state character org investment (the primary-cycle organization you built as a candidate, not the shared party-wide campaign presence score) is debited from you and added to your endorsed nominee's effective org for vote distribution in each state, for as long as you stay suspended.
• Your existing vote tally is preserved: votes already earned across every state stay counted. You remain on the ballot but accumulate no further votes in any subsequent turn.
• Suspended nominees forfeit all passive bonuses (swing-state ground game, VP home-state effect, campaign strength multiplier).
• Irreversible for the rest of the general. Nominee-only (not campaign manager).
• If your endorsed candidate withdraws, transfers are already complete and you remain frozen on the ballot. No further action needed.

Perpetual continuity#

No seat sits vacant. Mechanics:

• House: Next cycle spawned immediately on resolution.
• Senate / Governor / State Senate: Perpetual check each turn; replacement spawned for any slot with no active/upcoming race.
• Governor bootstrap: If no state has ever completed a governor race, one is spawned per state so cycle 1 exists.
• President: Spawned via the canonical LARP schedule when no active/upcoming president race exists; the cycle window plus a 24h primary / 24h general floor keep spawns aligned to real-world presidential election years.
• New elections inherit duration from the most recently completed equivalent race.

Presidential election specifics#

• National race. Any home state can run.
• Campaign Presence (per-candidate, per-state): Separate from party-wide state org. Build it on the Presidential Election page (the Campaign Presence map) or at Political Operations. Each +1 level costs 3 campaign actions plus an escalating cash price from the campaign treasury (about $250K for the first level, roughly a third more each level after), at most one level per state per turn. You need an active campaign to build it. There is no level cap, but the bonus curve flattens as the price compounds, so level 10 already delivers about three quarters of the maximum and the levels above it buy steadily less. Fully invested, a state approaches +25% primary vote weight and +15% general vote weight there. Levels drop to 25% after the presidential general resolves, so investment carries across cycles. This is the ground-game loop for a presidential run; party org is a different lever the chair controls.
• Electoral College (538 votes, 270 to win). ME and NE split by congressional district (UNIT_LEAN modifiers).
• Independent penalty: 0.3x vote share on the general path (70% reduction).
• Running mate (VP): After the primary, each nominee picks a VP. Cannot be the current President; cannot be the same person.
• Presidential Travel: Active candidates can travel to a US state during the general. Cost is 3-10 actions based on the state's electoral-vote count (<=5 EV = 3 actions; <=10 EV = 5; <=20 EV = 7; >20 EV = 10). +1% Favorability per turn while in-state, one state at a time.
• Governor Endorsement: A sitting Governor who endorses a presidential candidate in their home state applies a 1.5% bonus (GOVERNOR_ENDORSEMENT_STATE_BONUS = 1.015) to that candidate's vote total in the state.
• No EV majority: If no candidate reaches 270 (including a 269-269 tie or a third party blocking a majority), a contingent election runs. The House elects the President from the top three EV finishers (one vote per state delegation; DC has EVs but no House vote; 26 states needed). The Senate elects the Vice President from the top two running mates (51 votes needed). Representatives and senators vote primarily by party, then ideology proximity; tied state delegations abstain. Chamber composition is snapshotted when the contingent ballot first runs so same-turn House/Senate flips cannot change the ballot mid-resolution.
• MVP ballot: Contingent races resolve on a single simulated House/Senate ballot per cycle. If neither chamber reaches its threshold, a deterministic deadlock breaker seats a winner (multi-turn contingent ballots with an acting VP are planned for a later version).
• Party-weighted positions: In presidential general elections, candidate positions are blended toward their party platform with weight 1/3 ((partyPos + 3 * charPos) / 4). This keeps nominees aligned with their coalition while preserving individual identity: 75% candidate, 25% party.
• Swing-state ground game: In swing states (|lean| < 0.5), candidates with invested ground game receive +3% votes per ground-game level (legacy level-based path); the newer Campaign Ops tree path grants the starter + branch magnitude instead of the flat per-level rate.
• VP home-state effect: A nominee whose running mate hails from the current state receives +3% in that state. Stacks with ground game.
• Campaign strength multiplier: Player campaign contributions build campaign strength, which applies a multiplicative vote boost. Each contribution adds 0.75 * NPI strength. The curve is 1 + 1 * (1 - exp(-strength/50,000)), soft-capping at +100% (2x total votes) at very high strength. Each campaign turn also pulls the strict campaign-strength leader in an active race back toward that race's average by up to 175 strength.
• State lean multiplier: Each electoral unit applies a lean multiplier: 1 + lean * epSign * leanStrength (leanStrength = 0.3 for ME/NE districts, 0.1 for full states), clamped to [0.8, 1.2]. State partisanship stays visible as a tiebreaker-scale effect (at most a 1.5:1 two-party swing) rather than dominating appeal, which already prices in the state's leans.

Polls vs simulated votes#

• State races (House, Senate, Gov, State Senate, Commons, Bundestag, Sangiin, Shugiin): player polls use the same group-level competitive allocation and FPTP spoiler rules as real vote accumulation. Poll numbers reflect the actual math.
• Presidential: simulated votes accumulate per electoral unit using a different model (party-weighted positions, steep party-org curve, state-lean, swing-state ground game, FPTP spoiler not applied). Player polls remain home-state projections only and should not be treated as Electoral College forecasts.

Related#

• Primaries: Declaration rules, NPP dynamics, primary-phase tactics.
• General Elections: Vote accumulation, final-turn weighting, tie-breakers.
• Campaign Strategy: Tactical decision-making.
• Primary vs General Tactics: How to pivot between phases.
• Demographics & Targeting: Appeal math and group composition.
• Snap Elections: Parliamentary dissolution in UK, JP, and DE.
• Reference: Formulas: Every formula with derivations.