# Yvelines's 10th constituency

The 10th constituency of the Yvelines is a French legislative constituency in the Yvelines département.

## Description

Yvelines' 10th constituency covers the largely rural southern territory of the department and is its largest seat.
The seat has elected conservatives at every legislative election since its creation in 1988. However, in 2010 the seat was won in a by-election Anny Poursinoff of the EELV. The seat returned to its historic pattern in 2012 when it elected the man she defeated in that by-election Jean-Frédéric Poisson of the PCD.

## Historic Representation

| Election | Election | Member | Party |
| 1986 | 1986 | Proportional representation – no election by constituency | Proportional representation – no election by constituency |
| | 1988 | Christine Boutin | UDF |
| | 1993 | Christine Boutin | UDF |
| | 1997 | Christine Boutin | UDF |
| | 2002 | Christine Boutin | UMP |
| | 2007 | Christine Boutin | UMP |
| | 2009 | Jean-Frédéric Poisson | UMP |
| | 2010 | Anny Poursinoff | EELV |
| | 2012 | Jean-Frédéric Poisson | PCD |
| | 2017 | Aurore Bergé | LREM |
| | 2022 | Aurore Bergé | RE |

## Election results
### 2024

| Candidate | Candidate | Party | Alliance | First round | First round | First round | Second round | Second round | Second round |
| Candidate | Candidate | Party | Alliance | Votes | % | +/– | Votes | % | +/– |
| | Aurore Bergé | RE | ENS | 22,367 | 33.59 | +0.16 | 32,048 | 49.05 | -14.22 |
| | Thomas du Chalard | RN | | 18,765 | 28.22 | +15.27 | 21,035 | 32.19 | n/a |
| | Cédric Briolais | LFI | NFP | 14,918 | 22.40 | +0.36 | 12,255 | 18.76 | -17.97 |
| | Gaël Barbotin | LR | | 6,783 | 16.22 | -0.91 | | | |
| | Julien Gautrelet | DVG | | 2,260 | 3.39 | N/A | | | |
| | Ethel Fournier-Campion | DVE | | 1,141 | 1.71 | N/A | | | |
| | Olivier Gousseau | REC | | 894 | 1.34 | -4.51 | | | |
| | Hélène Janisset | LO | | 421 | 0.63 | -0.24 | | | |
| Valid votes | Valid votes | Valid votes | Valid votes | 66,593 | 98.23 | -0.37 | 65,338 | 97.43 | +44.76 |
| Blank votes | Blank votes | Blank votes | Blank votes | 872 | 1.29 | +0.26 | 1,338 | 2.00 | +0.71 |
| Null votes | Null votes | Null votes | Null votes | 326 | 0.48 | +0.11 | 388 | 0.58 | +0.10 |
| Turnout | Turnout | Turnout | Turnout | 67,791 | 73.30 | +17.86 | 67,064 | 72.50 | -0.80 |
| Abstentions | Abstentions | Abstentions | Abstentions | 24,689 | 26.70 | -17.86 | 25,440 | 27.50 | +0.80 |
| Registered voters | Registered voters | Registered voters | Registered voters | 92,480 | | | 92,504 | | |
| Source: Ministry of the Interior, Le Monde ||||||||||
| Result | Result | Result | Result | Result | Result | Result | REN HOLD | REN HOLD | REN HOLD | REN HOLD | REN HOLD | REN HOLD | REN HOLD |

### 2022

Legislative Election 2022: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | LREM (Ensemble) | Aurore Bergé | 16,727 | 33.43 | -13.20 |
| | LFI (NUPÉS) | Cédric Briolais | 11,030 | 22.04 | +3.37 |
| | LR (UDC) | Anne Cabrit | 8,571 | 17.13 | N/A |
| | RN | Thomas Du Chalard | 6,482 | 12.95 | +5.04 |
| | REC | Philippe Chevrier | 2,926 | 5.85 | N/A |
| | DVE | Patrice Jacono | 2,329 | 4.65 | N/A |
| | Others | N/A | 1,973 | 3.94 | |
| Turnout | Turnout | Turnout | 50,038 | 55.44 | −0.14 |
| 2nd round result ||||||
| | LREM (Ensemble) | Aurore Bergé | 28,169 | 63.27 | -1.48 |
| | LFI (NUPÉS) | Cédric Briolais | 16,355 | 36.73 | N/A |
| Turnout | Turnout | Turnout | 44,524 | 52.67 | +7.66 |
| | LREM hold | LREM hold | LREM hold | LREM hold | LREM hold |

### 2017

Legislative Election 2017: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | LREM | Aurore Bergé | 23,009 | 46.63 | |
| | VIA | Jean-Frédéric Poisson | 9,434 | 19.12 | |
| | LFI | Benjamin Nicoletta | 4,341 | 8.80 | |
| | FN | François Le Hot | 3,902 | 7.91 | |
| | EELV | David Jutier | 2,479 | 5.02 | |
| | PS | Jean-Claude Husson | 2,391 | 4.85 | |
| | Others | N/A | 3,786 | | |
| Turnout | Turnout | Turnout | 49,342 | 55.58 | |
| 2nd round result ||||||
| | LREM | Aurore Bergé | 25,868 | 64.75 | |
| | VIA | Jean-Frédéric Poisson | 14,084 | 35.25 | |
| Turnout | Turnout | Turnout | 39,952 | 45.01 | |
| | LREM gain from VIA | LREM gain from VIA | LREM gain from VIA | LREM gain from VIA | LREM gain from VIA |

### 2012

Legislative Election 2012: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | EELV | Anny Poursinoff | 18,369 | 34.67 | |
| | UMP | Jean-Frédéric Poisson | 18,357 | 34.65 | |
| | FN | Philippe Chevrier | 6,268 | 11.83 | |
| | FG | Claire Vignaud | 2,448 | 4.62 | |
| | DVD | François de la Villardiere | 2,322 | 4.38 | |
| | MoDem | Michel Lhemery | 1,594 | 3.01 | |
| | Others | N/A | 3,628 | | |
| Turnout | Turnout | Turnout | 53,576 | 61.73 | |
| 2nd round result ||||||
| | UMP | Jean-Frédéric Poisson | 28,043 | 53.65 | |
| | EELV | Anny Poursinoff | 24,224 | 46.35 | |
| Turnout | Turnout | Turnout | 53,516 | 61.67 | |
| | UMP gain from EELV | UMP gain from EELV | UMP gain from EELV | UMP gain from EELV | UMP gain from EELV |

### 2010 by-election

MP Christine Boutin's resignation in 2009 precipitated a by-election, which was won by UMP candidate Jean-Frédéric Poisson with a lead of just five votes over Greens candidate Anny Poursinoff. An appeal and recount led the Constitutional Council to first declare Poisson had won by just one vote, and then ultimately to order a fresh by-election which was held on the 4th and 10 July 2010. Poisson and Poursinoff again advanced to the second round, and Poursinoff was elected with a clear lead of 1,005 votes.
2010 by-election: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | EELV | Anny Poursinoff | 11,420 | 42.60 | |
| | UMP | Jean-Frédéric Poisson | 10,909 | 40.70 | |
| | FN | Philippe Chavrier | 2,004 | 7.50 | |
| | PCF | Vincent Liechiti | 1,085 | 4.00 | |
| | NC | Michel Finck | 854 | 3.20 | |
| | Others | N/A | 526 | | |
| Turnout | Turnout | Turnout | 27,204 | 26.80 | |
| 2nd round result ||||||
| | EELV | Anny Poursinoff | 15,109 | 51.70 | |
| | UMP | Jean-Frédéric Poisson | 14,104 | 48.30 | |
| Turnout | Turnout | Turnout | 29,912 | 29.40 | |
| | EELV gain from UMP | EELV gain from UMP | EELV gain from UMP | EELV gain from UMP | EELV gain from UMP |

### 2007

Legislative Election 2007: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | UMP | Christine Boutin | 31,614 | 49.23 | |
| | PS | Didier Fischer | 13,777 | 21.46 | |
| | MoDem | Pierre Le Guerinel | 7,347 | 11.44 | |
| | LV | Anny Poursinoff | 2,434 | 3.79 | |
| | FN | Philippe Chevrier | 2,287 | 3.56 | |
| | Far left | Danielle Atlan | 1,482 | 2.31 | |
| | Others | N/A | 5,272 | | |
| Turnout | Turnout | Turnout | 65,205 | 64.43 | |
| 2nd round result ||||||
| | UMP | Christine Boutin | 33,583 | 58.37 | |
| | PS | Didier Fischer | 23,949 | 41.63 | |
| Turnout | Turnout | Turnout | 59,567 | 58.87 | |
| | UMP hold | UMP hold | UMP hold | UMP hold | UMP hold |

### 2002

Legislative Election 2002: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | UMP | Christine Boutin | 20,674 | 32.48 | |
| | PS | Didier Fischer | 16,318 | 25.63 | |
| | DVD | Alain Bricault | 9,886 | 15.53 | |
| | FN | Philippe Chevrier | 6,341 | 9.96 | |
| | LV | Anny Poursinoff | 2,256 | 3.54 | |
| | PCF | Luc Miserey | 1,555 | 2.44 | |
| | Others | N/A | 6,626 | | |
| Turnout | Turnout | Turnout | 64,595 | 67.84 | |
| 2nd round result ||||||
| | UMP | Christine Boutin | 31,342 | 56.29 | |
| | PS | Didier Fischer | 24,339 | 43.71 | |
| Turnout | Turnout | Turnout | 58,441 | 61.38 | |
| | UMP gain from UDF | UMP gain from UDF | UMP gain from UDF | UMP gain from UDF | UMP gain from UDF |

### 1997

Legislative Election 1997: Yvelines's 10th constituency :
| Party | Party | Candidate | Votes | % | ±% |
| | UDF | Christine Boutin | 16,867 | 28.62 | |
| | LV | Anny Poursinoff | 14,290 | 24.25 | |
| | FN | Jacques Michel | 8,311 | 14.10 | |
| | RPR | Henri Pailleux* | 8,179 | 13.88 | |
| | PCF | Christian Beaumanoir | 4,783 | 8.12 | |
| | MEI | Michel Haye | 3,615 | 6.13 | |
| | DIV | Jean-Louis Desvaud | 1,354 | 2.30 | |
| | Others | N/A | 1,529 | | |
| Turnout | Turnout | Turnout | 61,694 | 69.03 | |
| 2nd round result ||||||
| | UDF | Christine Boutin | 33,915 | 54.92 | |
| | LV | Anny Poursinoff | 27,844 | 45.08 | |
| Turnout | Turnout | Turnout | 65,223 | 73.00 | |
| | UDF hold | UDF hold | UDF hold | UDF hold | UDF hold |

## Sources

* Official results of French elections from 1998: "Résultats électoraux officiels en France" (in French).