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Partial researchResearch snapshot 2026-09-13. Evidence gaps remain; see Coverage for requirements.

Office briefing

DR. ARROYO — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · DR. ARROYO / NUEVO LEON · municipal · Municipal governmentMX-M-19-14

Read the complete original research briefing

INE result distributions kept separate. Certified seats, supplementary elections, coalition and boundary audit remain.

1. What office, where, and when is the next election?

Geography
DR. ARROYO / NUEVO LEON
Next election
2027-06-06
Linked upcoming event
next-9344d7713e496d8b6de1e360
Registry qualification
Unknown

2. How certain is that date?

2027-06-06 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024

Special · Legal certification not established · candidate marks

  • PRI51.3%
  • MORENA37.7%
  • MC3.3%
  • PT1.2%
  • PVEM0.7%
  • PAN0.6%
  • ESO0.4%
  • PRD0.0%
  • VIDA_NL0.0%
  • LIBERAL0.0%
  • PESNL0.0%
  • JUSTICIALISTA0.0%
  • PAN_PRI_PRD0.0%
  • PVEM_MORENA0.0%
  • CAND_IND10.0%
Results for event-02c572c17ad01f0b56b3c7b3
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/Seb75bd364f/202411,39751.3%UnknownRecorded
MORENAmexico/Seb75bd364f/20248,37437.7%UnknownRecorded
MCmexico/Seb75bd364f/20247263.3%UnknownRecorded
PTmexico/Seb75bd364f/20242691.2%UnknownRecorded
PVEMmexico/Seb75bd364f/20241550.7%UnknownRecorded
PANmexico/Seb75bd364f/20241430.6%UnknownRecorded
ESOmexico/Seb75bd364f/2024900.4%UnknownRecorded
PRDmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
VIDA_NLmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
LIBERALmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PESNLmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
JUSTICIALISTAmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PAN_PRI_PRDmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
PVEM_MORENAmexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND1mexico/Seb75bd364f/20240 (recorded zero)0% (recorded zero)UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PRI59.7%
  • MORENA30.0%
  • PAN4.8%
  • MC1.6%
  • RSP0.9%
  • PVEM0.7%
  • PRD0.1%
  • PT0.0%
  • PANAL0.0%
  • PES0.0%
  • FXM0.0%
  • C_PRI_PRD0.0%
  • C_PVEM_PT_MORENA_PANAL0.0%
  • CAND_IND70.0%
  • CAND_IND80.0%
  • CAND_IND90.0%
  • CAND_IND100.0%
  • CAND_IND110.0%
  • CAND_IND120.0%
  • CAND_IND130.0%
  • CAND_IND140.0%
  • CAND_IND150.0%
  • CAND_IND160.0%
  • CAND_IND170.0%
  • CAND_IND180.0%
  • CAND_IND190.0%
  • CAND_IND200.0%
  • CAND_IND210.0%
  • CAND_IND220.0%
Results for event-c9c0337973a2df7e5fba41e2
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S645d094f2f/202113,15659.7%UnknownRecorded
MORENAmexico/S645d094f2f/20216,61430%UnknownRecorded
PANmexico/S645d094f2f/20211,0544.8%UnknownRecorded
MCmexico/S645d094f2f/20213481.6%UnknownRecorded
RSPmexico/S645d094f2f/20211990.9%UnknownRecorded
PVEMmexico/S645d094f2f/20211440.7%UnknownRecorded
PRDmexico/S645d094f2f/2021320.1%UnknownRecorded
PTmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PANALmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
PESmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
FXMmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
C_PRI_PRDmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
C_PVEM_PT_MORENA_PANALmexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND7mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND8mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND9mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND10mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND11mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND12mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND13mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND14mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND15mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND16mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND17mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND18mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND19mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND20mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND21mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded
CAND_IND22mexico/S645d094f2f/20210 (recorded zero)0% (recorded zero)UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI52.7%
  • PAN34.9%
  • CAND_IND515.5%
  • PT_MORENA_ES1.8%
  • PRD0.6%
  • PANAL0.3%
  • PVEM0.1%
  • MC0.1%
Results for event-1c0f837a497d2249d266efe0
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S27bdb171f6/201811,40352.7%UnknownRecorded
PANmexico/S27bdb171f6/20187,55334.9%UnknownRecorded
CAND_IND51mexico/S27bdb171f6/20181,1805.5%UnknownRecorded
PT_MORENA_ESmexico/S27bdb171f6/20183791.8%UnknownRecorded
PRDmexico/S27bdb171f6/20181350.6%UnknownRecorded
PANALmexico/S27bdb171f6/2018680.3%UnknownRecorded
PVEMmexico/S27bdb171f6/2018220.1%UnknownRecorded
MCmexico/S27bdb171f6/2018210.1%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

2.310–100 historical closeness

Actual-event and/or comparability review incomplete

Comparison status: Provisional imported-series comparison; actual-event review open

Method ci.weighted-gap.v1. Inputs: latest_gap=14.290441524061649, oldest_gap=18.54438610856895, previous_gap=30.361535248526472

pedersen volatility

Provisional volatility

12.04percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Latest interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0.6759950836721188,53.87633544483313,0,1.2716271154391605,0.7327219438404085,3.431975040181526,39.58589392077148,0.42545145126217265],[4.891632245788276,61.05722374344456,0.14851255395182625,0,0.6683064927832181,1.6150740242261103,30.695688494918087,0.9235624448879194],[36.380713838447086,54.92509994701604,0.6502576947160541,0,0.10596792062039401,0.10115119695583065,0,7.836809402244594]]

pedersen volatility

Provisional volatility

38.9percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0.6759950836721188,53.87633544483313,0,1.2716271154391605,0.7327219438404085,3.431975040181526,39.58589392077148,0.42545145126217265],[4.891632245788276,61.05722374344456,0.14851255395182625,0,0.6683064927832181,1.6150740242261103,30.695688494918087,0.9235624448879194],[36.380713838447086,54.92509994701604,0.6502576947160541,0,0.10596792062039401,0.10115119695583065,0,7.836809402244594]]

pedersen volatility

Provisional volatility

25.47percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Both intervals mean

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0.6759950836721188,53.87633544483313,0,1.2716271154391605,0.7327219438404085,3.431975040181526,39.58589392077148,0.42545145126217265],[4.891632245788276,61.05722374344456,0.14851255395182625,0,0.6683064927832181,1.6150740242261103,30.695688494918087,0.9235624448879194],[36.380713838447086,54.92509994701604,0.6502576947160541,0,0.10596792062039401,0.10115119695583065,0,7.836809402244594]]

Source-reported control: Unverified. Current tenure requires separate dated evidence.

5. Officeholder evidence

Dated roster observations are not automatically current tenure. The source current-office flag means this office is tracked now, not that the last winner still holds it.

No officeholder observation supplied.

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “DR. ARROYO — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-19-14. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--Seb75bd364f, mexico--S645d094f2f, mexico--S27bdb171f6.