New, unknown insights into Konrad Adenauer's politics during the final phase of his chancellorship and as CDU party chairman are provided by the diary of his son, Paul Adenauer, discovered only in 2015. After the construction of the Berlin Wall and the federal election of 1961, a fierce dispute erupts over Adenauer's fourth chancellorship. The Monsignore observes his father at home in Rhöndorf; he describes the struggle with Erhard as his successor in the chancellery and CDU chairmanship, becoming a contemporary witness and chronicler of the decline of power. Weary from the conflict with the FDP, Konrad Adenauer considers the SPD as a coalition partner and is critical of his own party. Elections repeatedly ignite his fighting spirit. During the crises of the European integration process, he stays the course, particularly in the relationship between Erhard's government and de Gaulle, as well as in the transatlantic dispute over the potential involvement of the Federal Republic of Germany in military engagements.