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/mi/districts/01.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-01"
+classification: congressional-district
+state: "MI"
+district: "MI-01"
+demographics:
+  population: 787617
+  population_under_18: 152715
+  population_18_64: 220818
+  population_65_plus: 414084
+  median_household_income: 64299
+  poverty_rate: 12.49
+  homeownership_rate: 81.12
+  unemployment_rate: 3.19
+  median_home_value: 223300
+  gini_index: 0.4467
+  vacancy_rate: 28.42
+  race_white: 706071
+  race_black: 8662
+  race_asian: 4927
+  hispanic: 18528
+  bachelors_plus: 172091
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-01
+
+Congressional district MI-01.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 787617 |
+| Under 18 | 152715 |
+| 18–64 | 220818 |
+| 65+ | 414084 |
+| Median household income | 64299 |
+| Poverty rate | 12.49 |
+| Homeownership rate | 81.12 |
+| Unemployment rate | 3.19 |
+| Median home value | 223300 |
+| Gini index | 0.4467 |
+| Vacancy rate | 28.42 |
+| White | 706071 |
+| Black | 8662 |
+| Asian | 4927 |
+| Hispanic/Latino | 18528 |
+| Bachelor's or higher | 172091 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-02"
+classification: congressional-district
+state: "MI"
+district: "MI-02"
+demographics:
+  population: 788872
+  population_under_18: 182559
+  population_18_64: 238800
+  population_65_plus: 367513
+  median_household_income: 66726
+  poverty_rate: 13.28
+  homeownership_rate: 83.37
+  unemployment_rate: 4.08
+  median_home_value: 226900
+  gini_index: 0.4436
+  vacancy_rate: 18.66
+  race_white: 699268
+  race_black: 16591
+  race_asian: 4445
+  hispanic: 40074
+  bachelors_plus: 129541
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-02
+
+Congressional district MI-02.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 788872 |
+| Under 18 | 182559 |
+| 18–64 | 238800 |
+| 65+ | 367513 |
+| Median household income | 66726 |
+| Poverty rate | 13.28 |
+| Homeownership rate | 83.37 |
+| Unemployment rate | 4.08 |
+| Median home value | 226900 |
+| Gini index | 0.4436 |
+| Vacancy rate | 18.66 |
+| White | 699268 |
+| Black | 16591 |
+| Asian | 4445 |
+| Hispanic/Latino | 40074 |
+| Bachelor's or higher | 129541 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-03"
+classification: congressional-district
+state: "MI"
+district: "MI-03"
+demographics:
+  population: 791175
+  population_under_18: 198570
+  population_18_64: 289396
+  population_65_plus: 303209
+  median_household_income: 77215
+  poverty_rate: 11.42
+  homeownership_rate: 68.06
+  unemployment_rate: 4.31
+  median_home_value: 309200
+  gini_index: 0.4642
+  vacancy_rate: 4.48
+  race_white: 569921
+  race_black: 84377
+  race_asian: 24010
+  hispanic: 88213
+  bachelors_plus: 210649
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-03
+
+Congressional district MI-03.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 791175 |
+| Under 18 | 198570 |
+| 18–64 | 289396 |
+| 65+ | 303209 |
+| Median household income | 77215 |
+| Poverty rate | 11.42 |
+| Homeownership rate | 68.06 |
+| Unemployment rate | 4.31 |
+| Median home value | 309200 |
+| Gini index | 0.4642 |
+| Vacancy rate | 4.48 |
+| White | 569921 |
+| Black | 84377 |
+| Asian | 24010 |
+| Hispanic/Latino | 88213 |
+| Bachelor's or higher | 210649 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-04"
+classification: congressional-district
+state: "MI"
+district: "MI-04"
+demographics:
+  population: 785367
+  population_under_18: 196849
+  population_18_64: 267986
+  population_65_plus: 320532
+  median_household_income: 73702
+  poverty_rate: 11.37
+  homeownership_rate: 74.04
+  unemployment_rate: 3.38
+  median_home_value: 276300
+  gini_index: 0.4572
+  vacancy_rate: 9.78
+  race_white: 602247
+  race_black: 57741
+  race_asian: 21180
+  hispanic: 74129
+  bachelors_plus: 183037
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-04
+
+Congressional district MI-04.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 785367 |
+| Under 18 | 196849 |
+| 18–64 | 267986 |
+| 65+ | 320532 |
+| Median household income | 73702 |
+| Poverty rate | 11.37 |
+| Homeownership rate | 74.04 |
+| Unemployment rate | 3.38 |
+| Median home value | 276300 |
+| Gini index | 0.4572 |
+| Vacancy rate | 9.78 |
+| White | 602247 |
+| Black | 57741 |
+| Asian | 21180 |
+| Hispanic/Latino | 74129 |
+| Bachelor's or higher | 183037 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-05"
+classification: congressional-district
+state: "MI"
+district: "MI-05"
+demographics:
+  population: 775260
+  population_under_18: 181600
+  population_18_64: 230200
+  population_65_plus: 363460
+  median_household_income: 70684
+  poverty_rate: 10.77
+  homeownership_rate: 79.49
+  unemployment_rate: 4.16
+  median_home_value: 228200
+  gini_index: 0.426
+  vacancy_rate: 12.27
+  race_white: 661147
+  race_black: 31070
+  race_asian: 6047
+  hispanic: 45356
+  bachelors_plus: 132482
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-05
+
+Congressional district MI-05.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 775260 |
+| Under 18 | 181600 |
+| 18–64 | 230200 |
+| 65+ | 363460 |
+| Median household income | 70684 |
+| Poverty rate | 10.77 |
+| Homeownership rate | 79.49 |
+| Unemployment rate | 4.16 |
+| Median home value | 228200 |
+| Gini index | 0.426 |
+| Vacancy rate | 12.27 |
+| White | 661147 |
+| Black | 31070 |
+| Asian | 6047 |
+| Hispanic/Latino | 45356 |
+| Bachelor's or higher | 132482 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-06"
+classification: congressional-district
+state: "MI"
+district: "MI-06"
+demographics:
+  population: 768949
+  population_under_18: 176451
+  population_18_64: 261841
+  population_65_plus: 330657
+  median_household_income: 96954
+  poverty_rate: 10.72
+  homeownership_rate: 69.63
+  unemployment_rate: 3.91
+  median_home_value: 368800
+  gini_index: 0.4618
+  vacancy_rate: 6.01
+  race_white: 526155
+  race_black: 75047
+  race_asian: 94366
+  hispanic: 41060
+  bachelors_plus: 283722
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-06
+
+Congressional district MI-06.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 768949 |
+| Under 18 | 176451 |
+| 18–64 | 261841 |
+| 65+ | 330657 |
+| Median household income | 96954 |
+| Poverty rate | 10.72 |
+| Homeownership rate | 69.63 |
+| Unemployment rate | 3.91 |
+| Median home value | 368800 |
+| Gini index | 0.4618 |
+| Vacancy rate | 6.01 |
+| White | 526155 |
+| Black | 75047 |
+| Asian | 94366 |
+| Hispanic/Latino | 41060 |
+| Bachelor's or higher | 283722 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-07"
+classification: congressional-district
+state: "MI"
+district: "MI-07"
+demographics:
+  population: 792585
+  population_under_18: 184206
+  population_18_64: 264666
+  population_65_plus: 343713
+  median_household_income: 80268
+  poverty_rate: 11.37
+  homeownership_rate: 73.21
+  unemployment_rate: 3.72
+  median_home_value: 282200
+  gini_index: 0.4517
+  vacancy_rate: 5.13
+  race_white: 638913
+  race_black: 44829
+  race_asian: 30073
+  hispanic: 47167
+  bachelors_plus: 205608
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-07
+
+Congressional district MI-07.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 792585 |
+| Under 18 | 184206 |
+| 18–64 | 264666 |
+| 65+ | 343713 |
+| Median household income | 80268 |
+| Poverty rate | 11.37 |
+| Homeownership rate | 73.21 |
+| Unemployment rate | 3.72 |
+| Median home value | 282200 |
+| Gini index | 0.4517 |
+| Vacancy rate | 5.13 |
+| White | 638913 |
+| Black | 44829 |
+| Asian | 30073 |
+| Hispanic/Latino | 47167 |
+| Bachelor's or higher | 205608 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-08"
+classification: congressional-district
+state: "MI"
+district: "MI-08"
+demographics:
+  population: 769318
+  population_under_18: 180823
+  population_18_64: 234546
+  population_65_plus: 353949
+  median_household_income: 64576
+  poverty_rate: 16.04
+  homeownership_rate: 73.56
+  unemployment_rate: 5.87
+  median_home_value: 187100
+  gini_index: 0.4523
+  vacancy_rate: 8.1
+  race_white: 582094
+  race_black: 106819
+  race_asian: 8019
+  hispanic: 45253
+  bachelors_plus: 141033
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-08
+
+Congressional district MI-08.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 769318 |
+| Under 18 | 180823 |
+| 18–64 | 234546 |
+| 65+ | 353949 |
+| Median household income | 64576 |
+| Poverty rate | 16.04 |
+| Homeownership rate | 73.56 |
+| Unemployment rate | 5.87 |
+| Median home value | 187100 |
+| Gini index | 0.4523 |
+| Vacancy rate | 8.1 |
+| White | 582094 |
+| Black | 106819 |
+| Asian | 8019 |
+| Hispanic/Latino | 45253 |
+| Bachelor's or higher | 141033 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-09"
+classification: congressional-district
+state: "MI"
+district: "MI-09"
+demographics:
+  population: 782471
+  population_under_18: 179624
+  population_18_64: 224536
+  population_65_plus: 378311
+  median_household_income: 87017
+  poverty_rate: 8.51
+  homeownership_rate: 85.19
+  unemployment_rate: 3.24
+  median_home_value: 298800
+  gini_index: 0.4436
+  vacancy_rate: 6.99
+  race_white: 690994
+  race_black: 14327
+  race_asian: 13948
+  hispanic: 37057
+  bachelors_plus: 167678
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-09
+
+Congressional district MI-09.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 782471 |
+| Under 18 | 179624 |
+| 18–64 | 224536 |
+| 65+ | 378311 |
+| Median household income | 87017 |
+| Poverty rate | 8.51 |
+| Homeownership rate | 85.19 |
+| Unemployment rate | 3.24 |
+| Median home value | 298800 |
+| Gini index | 0.4436 |
+| Vacancy rate | 6.99 |
+| White | 690994 |
+| Black | 14327 |
+| Asian | 13948 |
+| Hispanic/Latino | 37057 |
+| Bachelor's or higher | 167678 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-10"
+classification: congressional-district
+state: "MI"
+district: "MI-10"
+demographics:
+  population: 775317
+  population_under_18: 170409
+  population_18_64: 255198
+  population_65_plus: 349710
+  median_household_income: 74512
+  poverty_rate: 11.55
+  homeownership_rate: 70.66
+  unemployment_rate: 4.81
+  median_home_value: 254200
+  gini_index: 0.4525
+  vacancy_rate: 4.49
+  race_white: 541928
+  race_black: 113532
+  race_asian: 59566
+  hispanic: 28164
+  bachelors_plus: 172222
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-10
+
+Congressional district MI-10.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 775317 |
+| Under 18 | 170409 |
+| 18–64 | 255198 |
+| 65+ | 349710 |
+| Median household income | 74512 |
+| Poverty rate | 11.55 |
+| Homeownership rate | 70.66 |
+| Unemployment rate | 4.81 |
+| Median home value | 254200 |
+| Gini index | 0.4525 |
+| Vacancy rate | 4.49 |
+| White | 541928 |
+| Black | 113532 |
+| Asian | 59566 |
+| Hispanic/Latino | 28164 |
+| Bachelor's or higher | 172222 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-11"
+classification: congressional-district
+state: "MI"
+district: "MI-11"
+demographics:
+  population: 787210
+  population_under_18: 162568
+  population_18_64: 274227
+  population_65_plus: 350415
+  median_household_income: 92977
+  poverty_rate: 8.71
+  homeownership_rate: 71.52
+  unemployment_rate: 4.18
+  median_home_value: 345700
+  gini_index: 0.4803
+  vacancy_rate: 7.85
+  race_white: 530056
+  race_black: 99329
+  race_asian: 79491
+  hispanic: 43030
+  bachelors_plus: 301906
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-11
+
+Congressional district MI-11.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 787210 |
+| Under 18 | 162568 |
+| 18–64 | 274227 |
+| 65+ | 350415 |
+| Median household income | 92977 |
+| Poverty rate | 8.71 |
+| Homeownership rate | 71.52 |
+| Unemployment rate | 4.18 |
+| Median home value | 345700 |
+| Gini index | 0.4803 |
+| Vacancy rate | 7.85 |
+| White | 530056 |
+| Black | 99329 |
+| Asian | 79491 |
+| Hispanic/Latino | 43030 |
+| Bachelor's or higher | 301906 |
+
+## Source
+
+- demographics: Census ACS 2023

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

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-12"
+classification: congressional-district
+state: "MI"
+district: "MI-12"
+demographics:
+  population: 751709
+  population_under_18: 186379
+  population_18_64: 244644
+  population_65_plus: 320686
+  median_household_income: 57324
+  poverty_rate: 21.54
+  homeownership_rate: 64.59
+  unemployment_rate: 6.55
+  median_home_value: 200800
+  gini_index: 0.4833
+  vacancy_rate: 11.1
+  race_white: 349013
+  race_black: 335594
+  race_asian: 11975
+  hispanic: 25510
+  bachelors_plus: 148038
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-12
+
+Congressional district MI-12.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 751709 |
+| Under 18 | 186379 |
+| 18–64 | 244644 |
+| 65+ | 320686 |
+| Median household income | 57324 |
+| Poverty rate | 21.54 |
+| Homeownership rate | 64.59 |
+| Unemployment rate | 6.55 |
+| Median home value | 200800 |
+| Gini index | 0.4833 |
+| Vacancy rate | 11.1 |
+| White | 349013 |
+| Black | 335594 |
+| Asian | 11975 |
+| Hispanic/Latino | 25510 |
+| Bachelor's or higher | 148038 |
+
+## Source
+
+- demographics: Census ACS 2023

data/jurisdictions/us/states/mi/districts/13.md

@@ -0,0 +1,59 @@
+---
+type: Jurisdiction
+title: "MI-13"
+classification: congressional-district
+state: "MI"
+district: "MI-13"
+demographics:
+  population: 784609
+  population_under_18: 212985
+  population_18_64: 265310
+  population_65_plus: 306314
+  median_household_income: 50937
+  poverty_rate: 27.18
+  homeownership_rate: 59.57
+  unemployment_rate: 7.7
+  median_home_value: 156200
+  gini_index: 0.5166
+  vacancy_rate: 16.8
+  race_white: 309175
+  race_black: 332039
+  race_asian: 21909
+  hispanic: 88290
+  bachelors_plus: 118938
+sources:
+  - field: demographics
+    source: Census ACS 2023
+confidence: official
+tags: [jurisdiction, congressional-district, mi]
+timestamp: "2026-07-03"
+---
+
+# MI-13
+
+Congressional district MI-13.
+
+## Demographics (ACS 2023)
+
+| Measure | Value |
+| --- | --- |
+| Population | 784609 |
+| Under 18 | 212985 |
+| 18–64 | 265310 |
+| 65+ | 306314 |
+| Median household income | 50937 |
+| Poverty rate | 27.18 |
+| Homeownership rate | 59.57 |
+| Unemployment rate | 7.7 |
+| Median home value | 156200 |
+| Gini index | 0.5166 |
+| Vacancy rate | 16.8 |
+| White | 309175 |
+| Black | 332039 |
+| Asian | 21909 |
+| Hispanic/Latino | 88290 |
+| Bachelor's or higher | 118938 |
+
+## Source
+
+- demographics: Census ACS 2023