while in the Chair, a Speaker does not have a deliberative vote, but if there is a tie in votes, the Speaker has a tiebreaker (or casting) vote. Most Speakers have been senior backbenchers of the party holding office at the start of a new Parliament, or at the time of the death or resignation of an incumbent Speaker. Five Speakers have been former government ministers: William Watt, Littleton Groom, Archie Cameron, Ian Sinclair and Bronwyn Bishop; two have been former Parliamentary Secretaries: Stephen Martin and Tony Smith; and one both a former minister and a former Leader of the Opposition: Billy Snedden. Two were former state premiers: Holder and Watt. There is no convention in Australia that Speakers should resign from Parliament at the end of their term; two Speakers have become Cabinet ministers after having been Speaker: Norman Makin and Gordon Scholes. Bronwyn Bishop was elected Speaker on 12 November 2013, as the Coalition's first female Speaker of the House and the third female Speaker, after Labor's Joan Child (1986–89) and Anna Burke (2012–13). The 43rd Parliament (2010–13) was the first Australian federal parliament to have had three Speakers: Harry Jenkins (elected September 2010), Peter Slipper (November 2011), and Anna Burke (October 2012). All male Speakers have been addressed by members as "Mister Speaker" while in the Chair. Joan Child chose to be addressed as "Madam Speaker", as female Speakers are usually referred to in other parliaments. Anna Burke broke with this tradition and ruled that her official form of address is merely "Speaker." Role The Speaker's principal duty is to preside over the House and maintain order in the House, uphold Standing Orders (rules of procedure), rule on points of order, and protect the rights of backbench members. Australian parliaments are notoriously rowdy, and the Speaker frequently exercises the disciplinary powers vested in them under Standing Orders. The Speaker may summarily order a Member to excuse themself from the House for one hour. For more serious offences, the Speaker may "name" a Member, saying "I name the Honourable Member for X," following the House's convention that Members are always referred to by their electorate. The House then votes on a motion to suspend the Member for 24 hours. (The House also had the power to permanently expel a Member, but this happened only once, in 1920: the member was Hugh Mahon. The House no longer has the