Brandmauer (Cordon Sanitaire) Enforcement
Excludes AfD from mainstream coalition arithmetic per party resolutions.
Saxony-Anhalt has repeatedly served as a political laboratory in unified Germany, from the 1994 “Magdeburg Model” (SPD minority tolerated by PDS) to the pioneering 2016 Kenya coalition.
Reinhard Höppner (SPD) formed a minority cabinet with Alliance 90/The Greens, tolerated by the post-communist PDS. Broke the post-war convention against cooperation with the far left.
Following AfD's initial surge to 24.3%, Minister-President Reiner Haseloff (CDU) forged Germany's first black-red-green alliance to maintain a stable cordon sanitaire.
Haseloff restructured the cabinet into a CDU-SPD-FDP coalition after the Greens departed, sustaining 56 of 97 seats without reliant support from radical flanks.
With AfD capturing 32 seats and Die Linke holding 8, any constitutional majority excluding the far right requires reconciling the CDU with Sahra Wagenknecht's BSW and the SPD.