2015 Mexican legislative election|
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Turnout | 47.72% |
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Legislative elections were held in Mexico on 7 June 2015, alongside municipal elections.
Background
Traditionally elections had taken place on the first Sunday of July, but in 2015 were set to the first Sunday of June.
Electoral system
The 500 members of the Chamber of Deputies were elected by two methods; 300 were elected in single-member constituencies, and 200 by proportional representation in a single nationwide constituency. Constitutional reforms in 2014 led to the creation of the National Electoral Institute, replacing the Federal Electoral Institute.
Opinion polls
Date
|
Pollster
|
PRI
|
PAN
|
PRD
|
PVEM
|
PT
|
PANAL
|
MC
|
Morena
|
PH
|
PES
|
Undeclared
|
Lead
|
|
|
|
|
|
|
|
|
|
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3 Jun 2015
|
Buendía & Laredo
|
28.8
|
24.7
|
11.7
|
9.2
|
4.1
|
2.8
|
4.7
|
8.8
|
1.5
|
2.4
|
32.0
|
4.1
|
3 Jun 2015
|
BGC–Excélsior
|
32.0
|
26.0
|
13.0
|
9.0
|
2.0
|
3.0
|
4.0
|
9.0
|
1.0
|
1.0
|
24.9
|
6.0
|
2 Jun 2015
|
Parametría
|
31.0
|
25.0
|
11.0
|
8.0
|
2.0
|
4.0
|
6.0
|
9.0
|
2.0
|
2.0
|
|
6.0
|
2 Jun 2015
|
Mitofsky
|
32.0
|
23.9
|
17.2
|
5.9
|
2.8
|
3.1
|
3.9
|
9.8
|
0.6
|
0.7
|
29.0
|
8.1
|
30 Mar 2015
|
Reforma
|
32.0
|
22.0
|
14.0
|
7.0
|
2.0
|
4.0
|
3.0
|
8.0
|
2.0
|
4.0
|
|
10.0
|
20–22 Feb 2015
|
Mitofsky[permanent dead link]
|
31.0
|
26.0
|
16.0
|
8.0
|
3.0
|
2.0
|
3.0
|
9.0
|
1.0
|
1.0
|
37.4
|
5.0
|
12–18 Feb 2015
|
Buendía & Laredo
|
30.0
|
26.0
|
13.0
|
11.0
|
3.0
|
3.0
|
2.0
|
9.0
|
1.0
|
1.0
|
—
|
4.0
|
10–15 Jan 2015
|
Parametría
|
31.0
|
27.0
|
12.0
|
10.0
|
2.0
|
3.0
|
3.0
|
10.0
|
1.0
|
1.0
|
—
|
4.0
|
1 Jul 2012
|
Federal election
|
31.9
|
25.9
|
18.5
|
6.1
|
4.6
|
4.1
|
4.0
|
—
|
—
|
—
|
—
|
6.0
|
Results
|
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Party | Party-list | Constituency | Total seats | +/– |
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Votes | % | Seats | Votes | % | Seats |
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| Institutional Revolutionary Party | 11,636,957 | 30.65 | 48 | 11,575,381 | 30.70 | 155 | 203 | –4 |
| National Action Party | 8,377,535 | 22.07 | 53 | 8,328,125 | 22.09 | 56 | 109 | –5 |
| Party of the Democratic Revolution | 4,335,321 | 11.42 | 27 | 4,293,411 | 11.39 | 28 | 55 | –45 |
| Morena | 3,345,712 | 8.81 | 21 | 3,304,736 | 8.76 | 14 | 35 | New |
| Ecologist Green Party of Mexico | 2,757,170 | 7.26 | 18 | 2,740,208 | 7.27 | 29 | 47 | +13 |
| Citizens' Movement | 2,431,063 | 6.40 | 15 | 2,412,817 | 6.40 | 10 | 25 | +9 |
| New Alliance Party | 1,486,626 | 3.92 | 10 | 1,475,423 | 3.91 | 1 | 11 | +1 |
| Social Encounter Party | 1,325,032 | 3.49 | 8 | 1,310,539 | 3.48 | 0 | 8 | New |
| Labor Party | 1,134,101 | 2.99 | 0 | 1,138,864 | 3.02 | 6 | 6 | –13 |
| Humanist Party | 856,716 | 2.26 | 0 | 847,689 | 2.25 | 0 | 0 | New |
| Independents | 225,029 | 0.59 | 0 | 225,029 | 0.60 | 1 | 1 | New |
| Non-registered candidates | 52,371 | 0.14 | 0 | 51,599 | 0.14 | 0 | 0 | 0 |
Total | 37,963,633 | 100.00 | 200 | 37,703,821 | 100.00 | 300 | 500 | 0 |
|
Valid votes | 37,963,633 | 95.23 | | 37,703,821 | 95.25 | | |
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Invalid/blank votes | 1,900,449 | 4.77 | | 1,881,384 | 4.75 | | |
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Total votes | 39,864,082 | 100.00 | | 39,585,205 | 100.00 | | |
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Registered voters/turnout | 83,536,377 | 47.72 | | 83,536,377 | 47.39 | | |
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Source: Diario Oficial, Diario Oficial, Election Resources |