Constitutional amendments

German law which transferred power from the Reichstag and the Weimar President to Adolf Hitler and his Cabinet

constitutional referendum held in Kazakhstan

formal change to the text of the written constitution of a nation or state

national referendum in Belarus

1996 referendum on politicalchanges

referendum on term limits

Referendum held in Iran

constitutional referendum in Kazakhstan

constitutional referendum to amend the constitution of Latvia in 2008

law abolishing state parliaments in Nazi Germany

national referendums held in Switzerland in 2010

concept that even a properly passed & ratified constitutional amendment not explicitly prohibited by a constitution's text, can have the potential to be unconstitutional on substantive grounds

Constitutional convention and modification

Nazi German law promulgated to consolidate the offices of Reich President and Reich Chancellor and transfer power to Adolf Hitler

1970s–1980s proposed for a federal United Ireland