Add elections + demographics layer: candidates and jurisdictions

Two new entity types, built deterministically from the raw exports:

  Candidate (2,494)     — 2026 federal candidates as files under
                          us/states/<st>/candidates/, with office,
                          district, party, incumbent/challenger stance,
                          campaign committee, FEC id.

  Jurisdiction (3,494)  — demographic nodes carrying ACS 2023 data:
                          3,131 counties (deduped from 3,231 mixed-format
                          fips keys) + 363 congressional districts.

This completes the county skeleton nationwide: every US county is now a
browsable node with population, income, poverty, race, education and
housing — even where no officeholders are mapped yet. In Florida the
county index.md merges into the existing dir and reports its officeholder
count alongside demographics (St. Lucie: 33 officeholders + ACS profile).

build.py now reads seven raw inputs in one deterministic pass
(byte-identical on rerun). The mirror now answers: who holds power, who
runs this institution, who is running, and what each place is made of.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

data/jurisdictions/us/states/nj/districts/01.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-01"
+classification: congressional-district
+state: "NJ"
+district: "NJ-01"
+demographics:
+  population: 784146
+  population_under_18: 184648
+  population_18_64: 265108
+  population_65_plus: 334390
+  median_household_income: 94772
+  poverty_rate: 10.13
+  homeownership_rate: 69.73
+  unemployment_rate: 5.64
+  median_home_value: 331300
+  gini_index: 0.442
+  vacancy_rate: 5.16
+  race_white: 469093
+  race_black: 136778
+  race_asian: 41046
+  hispanic: 135652
+  bachelors_plus: 208339
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-01
+
+Congressional district NJ-01.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 784146 |
+| Under 18 | 184648 |
+| 18–64 | 265108 |
+| 65+ | 334390 |
+| Median household income | 94772 |
+| Poverty rate | 10.13 |
+| Homeownership rate | 69.73 |
+| Unemployment rate | 5.64 |
+| Median home value | 331300 |
+| Gini index | 0.442 |
+| Vacancy rate | 5.16 |
+| White | 469093 |
+| Black | 136778 |
+| Asian | 41046 |
+| Hispanic/Latino | 135652 |
+| Bachelor's or higher | 208339 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/02.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-02"
+classification: congressional-district
+state: "NJ"
+district: "NJ-02"
+demographics:
+  population: 794193
+  population_under_18: 181955
+  population_18_64: 230699
+  population_65_plus: 381539
+  median_household_income: 84183
+  poverty_rate: 10.08
+  homeownership_rate: 76.12
+  unemployment_rate: 5.98
+  median_home_value: 358900
+  gini_index: 0.4564
+  vacancy_rate: 24.92
+  race_white: 514671
+  race_black: 87631
+  race_asian: 34580
+  hispanic: 153271
+  bachelors_plus: 179337
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-02
+
+Congressional district NJ-02.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 794193 |
+| Under 18 | 181955 |
+| 18–64 | 230699 |
+| 65+ | 381539 |
+| Median household income | 84183 |
+| Poverty rate | 10.08 |
+| Homeownership rate | 76.12 |
+| Unemployment rate | 5.98 |
+| Median home value | 358900 |
+| Gini index | 0.4564 |
+| Vacancy rate | 24.92 |
+| White | 514671 |
+| Black | 87631 |
+| Asian | 34580 |
+| Hispanic/Latino | 153271 |
+| Bachelor's or higher | 179337 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/03.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-03"
+classification: congressional-district
+state: "NJ"
+district: "NJ-03"
+demographics:
+  population: 795627
+  population_under_18: 181566
+  population_18_64: 245278
+  population_65_plus: 368783
+  median_household_income: 116950
+  poverty_rate: 5.05
+  homeownership_rate: 78.11
+  unemployment_rate: 5.29
+  median_home_value: 445200
+  gini_index: 0.4331
+  vacancy_rate: 3.5
+  race_white: 492853
+  race_black: 103010
+  race_asian: 71192
+  hispanic: 105422
+  bachelors_plus: 260961
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-03
+
+Congressional district NJ-03.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 795627 |
+| Under 18 | 181566 |
+| 18–64 | 245278 |
+| 65+ | 368783 |
+| Median household income | 116950 |
+| Poverty rate | 5.05 |
+| Homeownership rate | 78.11 |
+| Unemployment rate | 5.29 |
+| Median home value | 445200 |
+| Gini index | 0.4331 |
+| Vacancy rate | 3.5 |
+| White | 492853 |
+| Black | 103010 |
+| Asian | 71192 |
+| Hispanic/Latino | 105422 |
+| Bachelor's or higher | 260961 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/04.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-04"
+classification: congressional-district
+state: "NJ"
+district: "NJ-04"
+demographics:
+  population: 795125
+  population_under_18: 215220
+  population_18_64: 216589
+  population_65_plus: 363316
+  median_household_income: 103769
+  poverty_rate: 8.69
+  homeownership_rate: 80.86
+  unemployment_rate: 4.34
+  median_home_value: 522100
+  gini_index: 0.4614
+  vacancy_rate: 10.7
+  race_white: 647505
+  race_black: 32014
+  race_asian: 21189
+  hispanic: 85201
+  bachelors_plus: 226105
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-04
+
+Congressional district NJ-04.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 795125 |
+| Under 18 | 215220 |
+| 18–64 | 216589 |
+| 65+ | 363316 |
+| Median household income | 103769 |
+| Poverty rate | 8.69 |
+| Homeownership rate | 80.86 |
+| Unemployment rate | 4.34 |
+| Median home value | 522100 |
+| Gini index | 0.4614 |
+| Vacancy rate | 10.7 |
+| White | 647505 |
+| Black | 32014 |
+| Asian | 21189 |
+| Hispanic/Latino | 85201 |
+| Bachelor's or higher | 226105 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/05.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-05"
+classification: congressional-district
+state: "NJ"
+district: "NJ-05"
+demographics:
+  population: 794119
+  population_under_18: 179901
+  population_18_64: 234425
+  population_65_plus: 379793
+  median_household_income: 130387
+  poverty_rate: 5.64
+  homeownership_rate: 71.67
+  unemployment_rate: 3.96
+  median_home_value: 628800
+  gini_index: 0.459
+  vacancy_rate: 4.3
+  race_white: 452669
+  race_black: 49904
+  race_asian: 139385
+  hispanic: 151804
+  bachelors_plus: 316414
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-05
+
+Congressional district NJ-05.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 794119 |
+| Under 18 | 179901 |
+| 18–64 | 234425 |
+| 65+ | 379793 |
+| Median household income | 130387 |
+| Poverty rate | 5.64 |
+| Homeownership rate | 71.67 |
+| Unemployment rate | 3.96 |
+| Median home value | 628800 |
+| Gini index | 0.459 |
+| Vacancy rate | 4.3 |
+| White | 452669 |
+| Black | 49904 |
+| Asian | 139385 |
+| Hispanic/Latino | 151804 |
+| Bachelor's or higher | 316414 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/06.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-06"
+classification: congressional-district
+state: "NJ"
+district: "NJ-06"
+demographics:
+  population: 786792
+  population_under_18: 180787
+  population_18_64: 271608
+  population_65_plus: 334397
+  median_household_income: 104316
+  poverty_rate: 9.53
+  homeownership_rate: 59.4
+  unemployment_rate: 6.47
+  median_home_value: 517400
+  gini_index: 0.4469
+  vacancy_rate: 5.07
+  race_white: 343719
+  race_black: 86194
+  race_asian: 145785
+  hispanic: 213651
+  bachelors_plus: 243580
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-06
+
+Congressional district NJ-06.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 786792 |
+| Under 18 | 180787 |
+| 18–64 | 271608 |
+| 65+ | 334397 |
+| Median household income | 104316 |
+| Poverty rate | 9.53 |
+| Homeownership rate | 59.4 |
+| Unemployment rate | 6.47 |
+| Median home value | 517400 |
+| Gini index | 0.4469 |
+| Vacancy rate | 5.07 |
+| White | 343719 |
+| Black | 86194 |
+| Asian | 145785 |
+| Hispanic/Latino | 213651 |
+| Bachelor's or higher | 243580 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/07.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-07"
+classification: congressional-district
+state: "NJ"
+district: "NJ-07"
+demographics:
+  population: 789429
+  population_under_18: 179427
+  population_18_64: 229059
+  population_65_plus: 380943
+  median_household_income: 132702
+  poverty_rate: 5.16
+  homeownership_rate: 76.42
+  unemployment_rate: 4.46
+  median_home_value: 591400
+  gini_index: 0.466
+  vacancy_rate: 2.87
+  race_white: 546798
+  race_black: 42947
+  race_asian: 70118
+  hispanic: 110834
+  bachelors_plus: 315833
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-07
+
+Congressional district NJ-07.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 789429 |
+| Under 18 | 179427 |
+| 18–64 | 229059 |
+| 65+ | 380943 |
+| Median household income | 132702 |
+| Poverty rate | 5.16 |
+| Homeownership rate | 76.42 |
+| Unemployment rate | 4.46 |
+| Median home value | 591400 |
+| Gini index | 0.466 |
+| Vacancy rate | 2.87 |
+| White | 546798 |
+| Black | 42947 |
+| Asian | 70118 |
+| Hispanic/Latino | 110834 |
+| Bachelor's or higher | 315833 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/08.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-08"
+classification: congressional-district
+state: "NJ"
+district: "NJ-08"
+demographics:
+  population: 780391
+  population_under_18: 178761
+  population_18_64: 339355
+  population_65_plus: 262275
+  median_household_income: 88096
+  poverty_rate: 16.55
+  homeownership_rate: 26.77
+  unemployment_rate: 5.57
+  median_home_value: 565100
+  gini_index: 0.5094
+  vacancy_rate: 6.27
+  race_white: 232294
+  race_black: 74417
+  race_asian: 96132
+  hispanic: 400382
+  bachelors_plus: 236654
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-08
+
+Congressional district NJ-08.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 780391 |
+| Under 18 | 178761 |
+| 18–64 | 339355 |
+| 65+ | 262275 |
+| Median household income | 88096 |
+| Poverty rate | 16.55 |
+| Homeownership rate | 26.77 |
+| Unemployment rate | 5.57 |
+| Median home value | 565100 |
+| Gini index | 0.5094 |
+| Vacancy rate | 6.27 |
+| White | 232294 |
+| Black | 74417 |
+| Asian | 96132 |
+| Hispanic/Latino | 400382 |
+| Bachelor's or higher | 236654 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/09.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-09"
+classification: congressional-district
+state: "NJ"
+district: "NJ-09"
+demographics:
+  population: 772342
+  population_under_18: 188573
+  population_18_64: 259953
+  population_65_plus: 323816
+  median_household_income: 87122
+  poverty_rate: 11.69
+  homeownership_rate: 49.34
+  unemployment_rate: 5.86
+  median_home_value: 515700
+  gini_index: 0.465
+  vacancy_rate: 4.04
+  race_white: 309354
+  race_black: 65820
+  race_asian: 65621
+  hispanic: 347596
+  bachelors_plus: 179720
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-09
+
+Congressional district NJ-09.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 772342 |
+| Under 18 | 188573 |
+| 18–64 | 259953 |
+| 65+ | 323816 |
+| Median household income | 87122 |
+| Poverty rate | 11.69 |
+| Homeownership rate | 49.34 |
+| Unemployment rate | 5.86 |
+| Median home value | 515700 |
+| Gini index | 0.465 |
+| Vacancy rate | 4.04 |
+| White | 309354 |
+| Black | 65820 |
+| Asian | 65621 |
+| Hispanic/Latino | 347596 |
+| Bachelor's or higher | 179720 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/10.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-10"
+classification: congressional-district
+state: "NJ"
+district: "NJ-10"
+demographics:
+  population: 800200
+  population_under_18: 198950
+  population_18_64: 284589
+  population_65_plus: 316661
+  median_household_income: 76594
+  poverty_rate: 14.51
+  homeownership_rate: 40.53
+  unemployment_rate: 8.32
+  median_home_value: 483700
+  gini_index: 0.4748
+  vacancy_rate: 6.07
+  race_white: 156917
+  race_black: 379802
+  race_asian: 54272
+  hispanic: 195368
+  bachelors_plus: 183948
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-10
+
+Congressional district NJ-10.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 800200 |
+| Under 18 | 198950 |
+| 18–64 | 284589 |
+| 65+ | 316661 |
+| Median household income | 76594 |
+| Poverty rate | 14.51 |
+| Homeownership rate | 40.53 |
+| Unemployment rate | 8.32 |
+| Median home value | 483700 |
+| Gini index | 0.4748 |
+| Vacancy rate | 6.07 |
+| White | 156917 |
+| Black | 379802 |
+| Asian | 54272 |
+| Hispanic/Latino | 195368 |
+| Bachelor's or higher | 183948 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/11.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-11"
+classification: congressional-district
+state: "NJ"
+district: "NJ-11"
+demographics:
+  population: 800060
+  population_under_18: 189167
+  population_18_64: 252460
+  population_65_plus: 358433
+  median_household_income: 141429
+  poverty_rate: 4.46
+  homeownership_rate: 71.09
+  unemployment_rate: 3.97
+  median_home_value: 667900
+  gini_index: 0.4619
+  vacancy_rate: 3.24
+  race_white: 500236
+  race_black: 41412
+  race_asian: 99638
+  hispanic: 141018
+  bachelors_plus: 338751
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-11
+
+Congressional district NJ-11.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 800060 |
+| Under 18 | 189167 |
+| 18–64 | 252460 |
+| 65+ | 358433 |
+| Median household income | 141429 |
+| Poverty rate | 4.46 |
+| Homeownership rate | 71.09 |
+| Unemployment rate | 3.97 |
+| Median home value | 667900 |
+| Gini index | 0.4619 |
+| Vacancy rate | 3.24 |
+| White | 500236 |
+| Black | 41412 |
+| Asian | 99638 |
+| Hispanic/Latino | 141018 |
+| Bachelor's or higher | 338751 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/nj/districts/12.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "NJ-12"
+classification: congressional-district
+state: "NJ"
+district: "NJ-12"
+demographics:
+  population: 808427
+  population_under_18: 207087
+  population_18_64: 263030
+  population_65_plus: 338310
+  median_household_income: 117099
+  poverty_rate: 9.06
+  homeownership_rate: 66.56
+  unemployment_rate: 5.0
+  median_home_value: 529100
+  gini_index: 0.4574
+  vacancy_rate: 2.66
+  race_white: 306278
+  race_black: 125789
+  race_asian: 174310
+  hispanic: 189265
+  bachelors_plus: 275890
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, nj]
+timestamp: "2026-07-03"
+---
+
+# NJ-12
+
+Congressional district NJ-12.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 808427 |
+| Under 18 | 207087 |
+| 18–64 | 263030 |
+| 65+ | 338310 |
+| Median household income | 117099 |
+| Poverty rate | 9.06 |
+| Homeownership rate | 66.56 |
+| Unemployment rate | 5.0 |
+| Median home value | 529100 |
+| Gini index | 0.4574 |
+| Vacancy rate | 2.66 |
+| White | 306278 |
+| Black | 125789 |
+| Asian | 174310 |
+| Hispanic/Latino | 189265 |
+| Bachelor's or higher | 275890 |
+
+## Source
+
+- demographics: Census ACS 2023