Jacqui Lambie
In November 2017 , she was revealed to hold Australian-British dual citizenship , having inherited the British one from her Scottish-born father . As part of the parliamentary eligibility crisis , she announced her resignation on 14 November 2017 . After a recount , she was expected to be replaced by Devonport Mayor Steve Martin , who had been second on the JLN ticket in the 2016 federal election . He survived a challenge to his own eligibility , on a different constitutional ground , but refused to step down so as to create a casual Senate vacancy to which Lambie could be appointed . 
<triplet> 2016 federal election <subj> double dissolution <obj> has cause