Joe Hockey is a former Australian politician, the Member of Parliament for North Sydney from 1996 until 2015. He was the Treasurer of Australia in the Abbott Government from 18 September 2013 until September 2015 when he resigned from Cabinet, having refused an alternative offer from the incoming Prime Minister, Malcolm Turnbull. He previously served as the Minister for Human Services and Minister for Employment and Workplace Relations in the Howard Government. He also served as Ambassador of Australia to the United States from January 2016 until January 2020.

Hockey's parliamentary resignation triggered a 2015 North Sydney by-election where he was succeeded by Trent Zimmerman who had previously worked for Hockey as a staffer. His appointment as Ambassador of Australia to the United States was announced on 8 December 2015 to replace Kim Beazley, whose term ended in early 2016, and he assumed that position on 29 January 2016. His term as ambassador ended on 30 January 2020 and was succeeded by Arthur Sinodinos the week after.

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