The election took place at the inaugural gathering of members in the state capital, Magdeburg, following the state election last month. Rausch's deputy, Hans-Thomas Tillschneider, from the party's more extreme wing, was also elected later in the day.
The AfD is classified as 'rightwing extremist' by Saxony-Anhalt's intelligence agency. Its parliamentary group holds 39 seats, just short of an absolute majority. The BSW, a small leftwing party that mirrors the AfD's stances on Russia and immigration, provided crucial support. Five BSW politicians had announced they would vote for Rausch, and the final tally suggests four other MPs also supported him in the secret ballot.
The willingness of the BSW to break the 'firewall', a moral agreement among mainstream parties to shun the AfD, gives the party a chance of forming a state government, a historic first. BSW founder Sahra Wagenknecht called for an end to 'firewall idiocy,' while party deputy leader Christian Leye said 'the firewall is not working' and argued that the votes of nearly 44% of electors could not be ignored.
Protesters gathered outside the parliament building in Magdeburg after the result. The election came two weeks after the AfD won nearly 44% of votes in the state election last month, a result that dealt a hammer blow to Chancellor Friedrich Merz and his centre-right Christian Democrats.