2012 French legislative election|
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| Turnout | 57.2% (3.2 pp) (1st round) 55.4% (1.8 pp) 2nd round)
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|  | First party | Second party | Third party |  
|  |  |  |  |  
| Leader | Jean-Marc Ayrault | Jean-François Copé | Cécile Duflot |  
| Party | PS | UMP | EELV |  
| Leader since | 15 May 2012 | 17 November 2010 | 16 November 2006 |  
| Leader's seat | Loire-Atlantique-3rd | Seine-et-Marne-6th | Paris-6th |  
| Last election | 186 seats | 313 seats | 4 seats |  
| Seats won | 280 | 194 | 17 |  
| Seat change | 94 | 119 | 13 |  
| 1st round % and swing
 | 7,618,326 29.35%   4.7%
 | 7,037,268 27.12%    16.3%
 | 1,418,264 5.46%    2.21%
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| 2nd round % and swing
 | 9,420,889 40.91%   1.4%
 | 8,740,628 37.95%    8.4%
 | 829,036 3.60%    3.15%
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|  | Fourth party | Fifth party |  
|  |  |  |  
| Leader | Jean-Luc Mélenchon | Marine Le Pen |  
| Party | FG | FN |  
| Leader since | 18 November 2008 | 16 January 2011 |  
| Leader's seat | Ran in Pas-de-Calais's 11th (lost) | Ran in Pas-de-Calais's 11th (lost) |  
| Last election | 18 seats | 0 seats |  
| Seats won | 10 | 2 |  
| Seat change | 8 | 2 |  
| 1st round % and swing
 | 1,793,192 6.91%    2.62%
 | 3,528,663 13.60%    9.31%
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| 2nd round % and swing
 | 249,498 1.08%    0.55%
 | 842,695 3.66%    3.58%
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 First round results by constituency Second round results by constituency | 
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Legislative elections were held in France on 10 and 17 June 2012 (and on other dates for small numbers of voters outside metropolitan France) to select the members of the 14th National Assembly of the Fifth Republic, a little over a month after the presidential election run-off held on 6 May.
All 577 single member seats in the assembly, including those representing overseas departments and territories and French residents overseas, were contested using a two-round system.