Close the institutional gap: bodies, committees, leadership

The seat data answered 'who represents this place?' but not 'who runs
this institution?' — the Speaker of the House existed only as the rep
for LA-4. This adds the missing axis of institutional power.

New Body entities (233): the U.S. House, U.S. Senate, Executive Office,
49 committees, 181 subcommittees — each with its leadership.

Federal people (532/542) enriched with bioguide IDs, leadership roles,
and committee seats, reconciled from congress-legislators by name.
Mike Johnson is now Speaker of the House, not just LA-4.

Sources ingested directly into the repo (repo-canonical): Atlas
supplied bodies/leadership/committee_memberships via congress-legislators,
committed raw in data/. build.py supersedes convert_officeholders.py and
reads all four inputs in one deterministic pass (byte-identical on rerun).

The 10 unenriched federal records are a finding, not a bug: vacancies,
the President, and ~5 seats where Atlas's roster disagrees with the
authoritative current roster — model-vs-reality discrepancies to surface.

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

data/jurisdictions/us/people/elissa-slotkin.md

@@ -7,6 +7,40 @@ party: "D"
 level: "federal"
 branch: "legislative"
 state: "MI"
+committees:
+  - name: "Senate Committee on Agriculture, Nutrition, and Forestry"
+    role: "member"
+    body: "us/bodies/senate/committees/agriculture-nutrition-and-forestry"
+  - name: "Senate Committee on Agriculture, Nutrition, and Forestry - Commodities, Derivatives, Risk Management, and Trade"
+    role: "member"
+    body: "us/bodies/senate/committees/agriculture-nutrition-and-forestry/subcommittees/commodities-derivatives-risk-management-and-trade"
+  - name: "Senate Committee on Agriculture, Nutrition, and Forestry - Livestock, Dairy, Poultry, and Food Safety"
+    role: "ranking-member"
+    body: "us/bodies/senate/committees/agriculture-nutrition-and-forestry/subcommittees/livestock-dairy-poultry-and-food-safety"
+  - name: "Senate Committee on Armed Services"
+    role: "member"
+    body: "us/bodies/senate/committees/armed-services"
+  - name: "Senate Committee on Armed Services - Airland"
+    role: "member"
+    body: "us/bodies/senate/committees/armed-services/subcommittees/airland"
+  - name: "Senate Committee on Armed Services - Cybersecurity"
+    role: "member"
+    body: "us/bodies/senate/committees/armed-services/subcommittees/cybersecurity"
+  - name: "Senate Committee on Armed Services - Emerging Threats and Capabilities"
+    role: "ranking-member"
+    body: "us/bodies/senate/committees/armed-services/subcommittees/emerging-threats-and-capabilities"
+  - name: "Senate Committee on Homeland Security and Governmental Affairs"
+    role: "member"
+    body: "us/bodies/senate/committees/homeland-security-and-governmental-affairs"
+  - name: "Senate Committee on Homeland Security and Governmental Affairs - Border Management, Federal Workforce, and Regulatory Affairs"
+    role: "member"
+    body: "us/bodies/senate/committees/homeland-security-and-governmental-affairs/subcommittees/border-management-federal-workforce-and-regulatory-affairs"
+  - name: "Senate Committee on Homeland Security and Governmental Affairs - Disaster Management, District of Columbia, and Census"
+    role: "member"
+    body: "us/bodies/senate/committees/homeland-security-and-governmental-affairs/subcommittees/disaster-management-district-of-columbia-and-census"
+  - name: "Senate Committee on Veterans' Affairs"
+    role: "member"
+    body: "us/bodies/senate/committees/veterans-affairs"
 tenure:
   start: "2025-01-03"
   current: true
@@ -19,11 +53,14 @@ ids:
   office: "69f79d10-2af0-4b47-a599-1c29b3dfde38"
   tenure: "e6dac9c8-0747-4100-b308-b02507dde640"
   jurisdiction: "ba88f989-5268-4675-87a6-9950948bbd4b"
+  bioguide: "S001208"
 sources:
   - field: tenure
     source: "Senate.gov XML 2026-06-20"
   - field: jurisdiction
     source: "Derived from governor jurisdiction"
+  - field: roles
+    source: "congress-legislators (unitedstates project)"
 confidence: official
 tags: [officeholder, federal, legislative, mi]
 timestamp: "2026-06-20"
@@ -33,9 +70,24 @@ timestamp: "2026-06-20"
 
 Current U.S. Senate - MI (State of Michigan).
 
+## Committees
+
+- [Senate Committee on Agriculture, Nutrition, and Forestry](/us/bodies/senate/committees/agriculture-nutrition-and-forestry.md)
+- [Senate Committee on Agriculture, Nutrition, and Forestry - Commodities, Derivatives, Risk Management, and Trade](/us/bodies/senate/committees/agriculture-nutrition-and-forestry/subcommittees/commodities-derivatives-risk-management-and-trade.md)
+- [Senate Committee on Agriculture, Nutrition, and Forestry - Livestock, Dairy, Poultry, and Food Safety](/us/bodies/senate/committees/agriculture-nutrition-and-forestry/subcommittees/livestock-dairy-poultry-and-food-safety.md) — **ranking-member**
+- [Senate Committee on Armed Services](/us/bodies/senate/committees/armed-services.md)
+- [Senate Committee on Armed Services - Airland](/us/bodies/senate/committees/armed-services/subcommittees/airland.md)
+- [Senate Committee on Armed Services - Cybersecurity](/us/bodies/senate/committees/armed-services/subcommittees/cybersecurity.md)
+- [Senate Committee on Armed Services - Emerging Threats and Capabilities](/us/bodies/senate/committees/armed-services/subcommittees/emerging-threats-and-capabilities.md) — **ranking-member**
+- [Senate Committee on Homeland Security and Governmental Affairs](/us/bodies/senate/committees/homeland-security-and-governmental-affairs.md)
+- [Senate Committee on Homeland Security and Governmental Affairs - Border Management, Federal Workforce, and Regulatory Affairs](/us/bodies/senate/committees/homeland-security-and-governmental-affairs/subcommittees/border-management-federal-workforce-and-regulatory-affairs.md)
+- [Senate Committee on Homeland Security and Governmental Affairs - Disaster Management, District of Columbia, and Census](/us/bodies/senate/committees/homeland-security-and-governmental-affairs/subcommittees/disaster-management-district-of-columbia-and-census.md)
+- [Senate Committee on Veterans' Affairs](/us/bodies/senate/committees/veterans-affairs.md)
+
 ## Sources
 
 - tenure: Senate.gov XML 2026-06-20
 - jurisdiction: Derived from governor jurisdiction
+- roles: congress-legislators (unitedstates project)
 
 Generated from the Atlas officeholders v2 export (2026-06-20).