Political and political history of history ; Histoire politique et politique de l'Histoire
The current historiography is marked by the return of exhibition biographies, the denunciation of explanatory determinisms or the militant refusal of the method; it seems time for the militant statement of the creative subjectivity of historian and the relativism of knowledge. However, this contribution is intended to show that the processing of political discourse benefits from being subjected to controlled and systematised analyses, using IT and statistics, in order to make the reading and interpretation of texts more objective. ; International audience ; The current historiography is marked by the return of exhibition biographies, the denunciation of explanatory determinisms or the militant refusal of the method; it seems time for the militant statement of the creative subjectivity of historian and the relativism of knowledge. However, this contribution is intended to show that the processing of political discourse benefits from being subjected to controlled and systematised analyses, using IT and statistics, in order to make the reading and interpretation of texts more objective. ; L'historiographie actuelle est marquée par le retour des biographies de salon, par la dénonciation des déterminismes explicatifs ou encore par le refus militant de la méthode ; l'heure semble à l'affirmation militante de la subjectivité créatrice de l'historien et du relativisme de la connaissance. Cette contribution entend pourtant montrer que le traitement des discours politiques gagne à se soumettre à des analyses contrôlées et systématisées, ici grâce à l'informatique et la statistique, afin de mieux objectiver les parcours de lecture et l'interprétation des textes.