In 1930, Jordan was made Aussenpolitischer Schriftleiter (foreign policy editor) of the NSDAP Gau newspaper Der Sturm (The Storm) whose offices were in Kassel.

[4] On 19 January 1931, Jordan was summoned to Munich by Gregor Strasser, the Reichsorganisationsleiter, and was personally met by Adolf Hitler who appointed him Gauleiter of Halle-Merseburg.

[5] On 6 June 1932, Jordan wrote to Strasser concerning the alleged Jewish origins of Reinhard Heydrich, the head of the Sicherheitsdienst, the intelligence service of the SS.

Strasser passed Jordan's letter to the NSDAP's chief racial investigator, Dr. Achim Gercke, who dismissed the allegation on 22 June.

[5] Despite this, Jordan continued his rise within the Party ranks, serving in the Prussian Landtag between 24 April 1932 and 14 October 1933, and being elected to its executive council in March 1933.

Additionally, on 1 January 1940, Jordan was named Minister-President of the Anhalt State Government, succeeding Alfred Freyberg.

[9] On 1 July 1944 came Jordan's last leap up the career ladder when he was appointed Oberpräsident (High President) of the Province of Magdeburg, thus uniting under his control all the highest party and governmental offices in his jurisdictions.

In the war's dying days, on 2 May 1945, Jordan dissolved the Gau staff, disbanded the local Volkssturm and managed to go underground with his family under a false name.

West German Chancellor Konrad Adenauer, on a visit to Moscow, managed to persuade the Soviets to reconsider Jordan's sentence and he was released on 13 October 1955.

In the years that followed, Jordan earned a living as a sales representative, and worked as an administrator for an aircraft manufacturing firm.