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

Office briefing

ISIDRO FABELA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · ISIDRO FABELA / MEXICO · municipal · Municipal governmentMX-M-15-39

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
ISIDRO FABELA / MEXICO
Next election
2027-06-06
Linked upcoming event
next-34b64e12e761f1768566b358
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

  • PVEM_PT_MORENA23.6%
  • NAEM14.0%
  • CAND_IND313.7%
  • PRI13.5%
  • PRD11.8%
  • MC10.5%
  • PAN9.9%
Results for event-d3580f5c56fe7ce67d854287
Label / candidateParty codeVotesShareSeatsStatus
PVEM_PT_MORENAmexico/S9edc6218bd/20241,63123.6%UnknownRecorded
NAEMmexico/S9edc6218bd/202497014%UnknownRecorded
CAND_IND3mexico/S9edc6218bd/202494713.7%UnknownRecorded
PRImexico/S9edc6218bd/202493613.5%UnknownRecorded
PRDmexico/S9edc6218bd/202481711.8%UnknownRecorded
MCmexico/S9edc6218bd/202472610.5%UnknownRecorded
PANmexico/S9edc6218bd/20246849.9%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • PRI24.1%
  • PVEM18.3%
  • MC18.1%
  • PAN13.0%
  • PRD7.0%
  • RSP6.5%
  • PT_MORENA_NAEM6.0%
  • PES4.5%
  • FXM0.5%
Results for event-ad36e0f9112a90cef48c7c47
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S3c793191e3/20211,46924.1%UnknownRecorded
PVEMmexico/S3c793191e3/20211,11518.3%UnknownRecorded
MCmexico/S3c793191e3/20211,10118.1%UnknownRecorded
PANmexico/S3c793191e3/202179213%UnknownRecorded
PRDmexico/S3c793191e3/20214297%UnknownRecorded
RSPmexico/S3c793191e3/20213936.5%UnknownRecorded
PT_MORENA_NAEMmexico/S3c793191e3/20213666%UnknownRecorded
PESmexico/S3c793191e3/20212724.5%UnknownRecorded
FXMmexico/S3c793191e3/2021280.5%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PRI41.2%
  • PAN_PRD_MC22.3%
  • PANAL15.8%
  • PT_MORENA_ES6.2%
  • VR5.9%
  • PVEM5.4%
Results for event-f5e3d2ca28fed9263d6cb2ad
Label / candidateParty codeVotesShareSeatsStatus
PRImexico/S03093cb587/20182,49541.2%UnknownRecorded
PAN_PRD_MCmexico/S03093cb587/20181,35022.3%UnknownRecorded
PANALmexico/S03093cb587/201895715.8%UnknownRecorded
PT_MORENA_ESmexico/S03093cb587/20183756.2%UnknownRecorded
VRmexico/S03093cb587/20183555.9%UnknownRecorded
PVEMmexico/S03093cb587/20183275.4%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

51.780–100 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=9.849500819549993, oldest_gap=19.54258405871309, previous_gap=5.934618608549872

pedersen volatility

Provisional volatility

40.1percentage 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=[[10.192221725525258,13.94725078229772,12.174042616599612,0,0,10.818059901654001,0,52.86842497392341],[13.27745180217938,24.62699077954736,7.191953059513831,0,18.692372170997487,18.45766974015088,0,17.753562447611063],[0,42.58405871309097,0,0,5.581157194060419,0,0,51.83478409284861]]

pedersen volatility

Provisional volatility

52.04percentage 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: Previous interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[10.192221725525258,13.94725078229772,12.174042616599612,0,0,10.818059901654001,0,52.86842497392341],[13.27745180217938,24.62699077954736,7.191953059513831,0,18.692372170997487,18.45766974015088,0,17.753562447611063],[0,42.58405871309097,0,0,5.581157194060419,0,0,51.83478409284861]]

pedersen volatility

Provisional volatility

46.07percentage 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=[[10.192221725525258,13.94725078229772,12.174042616599612,0,0,10.818059901654001,0,52.86842497392341],[13.27745180217938,24.62699077954736,7.191953059513831,0,18.692372170997487,18.45766974015088,0,17.753562447611063],[0,42.58405871309097,0,0,5.581157194060419,0,0,51.83478409284861]]

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. “ISIDRO FABELA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-15-39. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S9edc6218bd, mexico--S3c793191e3, mexico--S03093cb587.