There is a large part of the population today whose perception of Swedish political parties assumes a pronounced distrust. Often, this mistrust is linked to whether politicians act on the election promises made during the election campaigns. This is a view that opposition parties often encourage through negative criticism during election campaigns and media platforms. The paradox that arises then becomes markedly confusing because research actually shows that parties almost fulfill most of the election promises made.   Furthermore, a society characterized by widespread distrust of political activity risks gradually undermining the representative democracy system, which may lead to diminished democratic legitimacy. In the field of research, therefore, there is often talk of making knowledge regarding election promises more accessible to voters, who then may examine political activity more effectively themselves. The study has analyzed the Alliance's and the Social Democrats' election promise fulfillment during the mandate periods 2006-2010 and 2014-2018, through qualitative analysis of the election manifesto and data collection from the Riksdag's website. The aim was to investigate and compare which of these party organizations best achieved good representation during the alternative government periods through clear method choices that could present data in an easily accessible way.   The study arrives at a result that shows a balancing election promise fulfillment between the Alliance and the Social Democrats, with a small statistical advantage for the Alliance. It also shows how the Alliance has achieved a slightly better representation by succeeding in fulfilling more election promises in key policy areas that the party organization has given higher priority to during the election campaigns and election manifestos.