Daga zaɓen na 1929, akwai manyan zaɓe guda uku waɗanda suka haifar da majalisun da aka rataye a Burtaniya. Na farko shi ne zaɓen a watan Fabrairun 1974, kuma majalisar da ta biyo baya ta kasance har zuwa Oktoba. Na biyu shi ne zaɓen Mayu 2010, wanda sakamakon shi ne majalisar da aka rataye tare da jam'iyyar Conservative a matsayin babbar jam'iyya guda. Sakamakon manyan jam'iyyun 3 sune: Conservatives 306, Labour 258, Liberal Democrats 57. Na uku ya samo asali ne daga zaɓen da aka yi a watan Yunin 2017 wanda Theresa May ta yi kira don ƙarfafa rinjaye ta shiga cikin tattaunawar Brexit daga baya a shekara ta 2017. Duk da haka, wannan zaɓen ya koma baya a kan May da Conservative Party, wanda ya haifar da majalisar da aka rataye bayan zaben.
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