Mexico
Senate
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Political system
Political systems: Presidential, Parliamentary, Presidential-Parliamentary, Monarchy, Communist, Transitional.
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Presidential system
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Structure of parliament
Structure of parliament: Unicameral, bicameral
View field in the data dictionary -
Bicameral
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IPU membership
Current membership status
View field in the data dictionary -
Yes
Election results
Data on parliamentary elections, including the background, candidates, voter turnout, results and the formation of the new legislature. By default the latest election results are displayed. Select a date to view results from previous elections.
Background
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Election date(s)
The date when elections started and ended for directly or indirectly elected parliaments/chambers. The date of appointments for appointed parliaments/chambers.
View field in the data dictionary -
01 Jul 2018
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Date of dissolution of the outgoing legislature
Date at which the previous legislature (elected at the previous elections) was dissolved.
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31 Aug 2018
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Timing of election
Timing of election: Upon normal expiry; Early elections; Delayed elections
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Upon normal expiry
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Expected date of next elections
The expected date at which the next elections should take place, based on law or practice.
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02 Jun 2024
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Number of seats at stake
Number of seats contested at the elections. Where the parliament/chamber is fully renewed, this number is usually identical to the statutory number of members. Where the parliament/chamber is partially renewed or appointed, the number of seats at stake is usually less than the total number of members.
View field in the data dictionary -
128
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Scope of elections
Scope of elections: Full renewal; Partial renewal.
View field in the data dictionary -
Full renewal
Voter turnout
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Registered voters
Number of people registered to vote
View field in the data dictionary -
89,250,881
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Voters
Number of people who actually voted
View field in the data dictionary -
56,691,869
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Voter turnout
The percentage is calculated by dividing the number of people who actually voted by the number of people registered to vote
View field in the data dictionary -
63.5%
Results
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About the election
Short description of the context and results of the election.
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The National Regeneration Movement (MORENA), founded by former Mexico City Mayor Andrés Manuel López Obrador, became the largest force in both chambers of the Congress, taking 255 seats in the 500-member Chamber of Deputies and 58 seats in the 128-member Senate. The National Action Party (PAN, which nominated Mr. Ricardo Anaya as its presidential candidate) became the second largest force in both chambers. Mr. Obrador (MORENA) won the presidential elections held in parallel with the parliamentary polls, campaigning on anti-corruption and reforms. On 1 December, Mr. Obrador was sworn in as the new President.
The 2018 elections, held for a total of 3,400 posts at different levels of the State, were marred by violence. Over 110 candidates had been murdered since the election process began in September 2017.
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Number of parties winning seats
The number of parties which won parliamentary representation in the given election.
View field in the data dictionary -
8
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Percentage of seats won by largest party or coalition
The percentage is calculated by dividing the number of seats won by the largest party by the number of seats at stake in the election.
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46.1%
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Number of parties in government
The government may be formed by one or more political parties
View field in the data dictionary -
8
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Names of parties in government
The government may be formed by one or more political parties
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National Regeneration Movement (MORENA), National Action Party (PAN), Institutional Revolutionary Party (PRI), Citizens' Movement (MC), Party of the Democratic Revolution (PRD), Workers’ Party (PT), Ecologist Green Party of Mexico (PVEM), Social Encounter Party (PES)
Parties or coalitions winning seats
Political group | Total |
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National Regeneration Movement (MORENA) | 59 |
National Action Party (PAN) | 24 |
Institutional Revolutionary Party (PRI) | 15 |
Citizens' Movement (MC) | 7 |
Workers' Party (PT) | 6 |
Ecologist Green Party of Mexico (PVEM) | 6 |
Democratic Revolutionary Party (PRD) | 5 |
Social Encounter Party (PES) | 5 |
Independents | 1 |
Members elected, by sex
- Number of men elected
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65
- Number of women elected
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63
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Percentage of women elected
The percentage is calculated by dividing the number of women elected by the number of seats filled.
View field in the data dictionary -
49.2%
- Women Directly Elected
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63
- Sources
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New legislature
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Total number of men after the election
The total number of male parliamentarians in this parliament/chamber following the election or renewal, regardless of their modes of designation.
View field in the data dictionary -
65
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Total number of women after the election
The total number of female parliamentarians in this parliament/chamber following the election or renewal, regardless of their modes of designation.
View field in the data dictionary -
63
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Percentage of women after the election
The percentage is calculated by dividing the total number of women in this parliament/chamber by the current number of members.
View field in the data dictionary -
49.2%
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First-term parliamentarians
The number of members who are assuming their parliamentary mandate for the first time following the election or renewal, regardless of their mode of designation.
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No information available
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Percentage of first-term parliamentarians
The percentage is calculated by dividing the number of first-term parliamentarians by the number of seats at stake in the election.
View field in the data dictionary -
No information available
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Date of the first session
The date when the newly elected parliament/chamber was convened for the first time. It may be different from the date when members were sworn in.
View field in the data dictionary -
01 Sep 2018
First Speaker of the new legislature
- Personal details for the first Speaker of the new legislature
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Martí Batres Guadarrama (Male)
Date of birth: 1967 -
Political party
The political party to which the Speaker belonged to at the moment of the election. In some parliaments, the Speaker suspends or relinquishes their party membership during their term in office and is considered as an independent member.
View field in the data dictionary -
National Regeneration Movement (MORENA)
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Date of election
The date of the election of the Speaker may be different from the date of the first session of the new legislature.
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01 Sep 2018