Cika wannan jumla: A 1968, Edward Heath ya ba da'sanarwar Perth', don tallafawa majalisa na Scottish, a sakamakon karuwar kishin kasa. Duk da haka, ba a amsa wannan dalili ba a lokacin da yake da rikice-rikice, kuma a karkashin jagorancin Margaret Thatcher da John Major, 'yan Conservatives sun yi tsayayya da rashin amincewa da shi, kuma sun yi yakin neman zabe a kan shi.
Zaben raba gardama na shekara ta 1997. Bayan kafa Majalisar Scottish a 1999, sun yi alƙawarin tallafawa ci gaba da wanzuwarsa, kuma tare da Labour da Liberal Democrats, sun goyi bayan Dokar Scotland (2011), suna ba da ƙarin ikon mulki. Sun yi kamfen tare da Labour da Liberal Democrats a kan cikakken Scottish Independence a cikin zaben raba gardama na Scottish Independence na 2014.