It is one of twenty-one in that département, and covers three cantons in whole or in part : Bouchain, Denain and Valenciennes-Sud (minus Valenciennes itself).

The parties of the mainstream left had a nationwide agreement whereby if two of them advanced to the second round, the second-placed would automatically withdraw.

Primarily, this was to avoid dividing the left-wing or centre-left electorate in constituencies where a right-wing, centre-right or far-right candidate had also reached the second round.

The parties of the mainstream left had a nationwide agreement whereby if two of them advanced to the second round, the second-placed would automatically withdraw.

Primarily, this was to avoid dividing the left-wing or centre-left electorate in constituencies where a right-wing, centre-right or far-right candidate had also reached the second round.