Blundell v Vardon, was the first of three decisions of the High Court of Australia concerning the 1906 election for senators for South Australia. Sitting as the Court of Disputed Returns, Barton J held that the election of Anti-Socialist Party candidate Joseph Vardon as the third senator for South Australia was void due to irregularities in the way the returning officers marked some votes. The Parliament of South Australia appointed James O'Loghlin. Vardon sought to have the High Court compel the governor of South Australia to hold a supplementary election, however the High Court held in R v Governor of South Australia; Ex parte Vardon that it had no power to do so. Vardon then petitioned the Senate seeking to remove O'Loghlin and rather than decide the issue, the Senate referred the matte