[3] He served as Minister Assisting the President of Nauru in cabinets of Kennan Adeang, Bernard Dowiyogo and René Harris in 1986, 2000-2001, 2003, 2003, 2003-2004.

During the tumultuous year of 2003, the office of President of Nauru changed hands on six occasions.

The perennial challenge for Presidential office-holders in Nauru is to stave off a vote of no confidence, to which frequent recourse is made; in 2003, these factors were particularly acute, given the ill health of President Bernard Dowiyogo.

During his brief Presidency, Gioura underwent a period of enforced absence from the country, since there were concerns for his health; he received a series of medical treatment in Australia.

[citation needed] By the year 2007, Nauruan political figures of Gioura's generation had been somewhat eclipsed by a younger set of leaders: in December 2007 the incoming President of Nauru Marcus Stephen was nearly four decades younger than Derog Gioura.