In 1978 Ukel joined politics by contesting and winning his home constituency of Wau East in the elections to the Second People's Regional Assembly in
Juba. When Alier lost this office in October 1981, Ukel became the secretary for the publicity committee of the “Council for the Unity of the Southern Sudan” (CUSS) which advocated against the redivision of the South. After the fall of
Gaafar Nimeyri’s regime in April 1985, Ukel was a founding member of the “Southern Sudan Political Association’s” (SSPA) political party and in 1986 became its Parliamentary group leader in the national Constituent Assembly of
Omdurman. Ukel became a minister of local government in the final coalition government of prime-minister
Sadiq al Mahdi (25 April – 30 June 1989). After the June 1989 coup, USAP was banned like all other parties and went underground. Ukel helped to form the domestic arm of the exiled
National Democratic Alliance (NDA), an umbrella of parties and forces opposed to the “National Salvation Revolution” rule of General
Omar al-Bashir, and was appointed its secretary general in 1992, while still working as a teacher of English language. During this period, he was repeatedly detained by al-Bashir's government, the last time between December 2000 and October 2001 on charges of treason and sedition. Ukel and Alier participated and mediated in the peace talks between the SPLM and al-Bashir's government in
Naivasha, Kenya, which led to the
Comprehensive Peace Agreement (CPA) in 2005. Under its power-sharing agreement, USAP was allocated ten seats in the
National Assembly and Ukel was appointed Minister of Parliamentary Affairs in the Government of National Unity. In its campaign for the
2010 general elections, USAP defined as one of its main goals “unity in diversity” as opposed to separation, which it emphasized by the choice of
Khartoum as its headquarters. Nevertheless, Ukel was appointed the Minister for Higher Education in the
Government of Southern Sudan (GOSS). After the independence of South Sudan in July 2011, Ukel was appointed Minister of General Education and served in this office until President
Salva Kiir dismissed the whole cabinet in August 2013. In April 2017, Ukel as USAP chairman was one of nine candidates picked by the government to represent South Sudan at the
East African Legislative Assembly. The same month, he was selected by Kiir as a member of the steering committee for the National Dialogue. However, he was not elected by the Transitional National Legislative Assembly in Juba in August 2017. In early 2018, a power struggle between Ukel and
Elia Lomuro over control of the political parties alliance was reported. On 12 September 2018, the
Revitalized Agreement on the Resolution of the Conflict in the Republic of South Sudan (R-ARCSS) was signed in Addis, Ukel was one of the six signatories representing the Umbrella Coalition of Political Parties. However, when the National Dialogue Steering Committee held a regional conference in Wau at the end of February 2019, Ukel reportedly walked out after not been given the chance to address the gathering and resigned from the National Dialogue. In August 2019, Ukel was reportedly arrested in Wau on allegations of supporting the rebel
SPLM-IO and put under house arrest in Juba by the
National Security Service (NSS). Two months later, in Mid-October, he was released from his confinements and arrived in Khartoum "
to seek medical treatment". ==References==