Citizenship of the United States
A person who is considered a citizen by more than one nation has "dual citizenship". It is possible for a United States citizen to have dual citizenship; this can be achieved in various ways, such as by birth in the United States to a parent who is a citizen of a foreign country (or in certain circumstances the foreign nationality may be transmitted even by a grandparent) by birth in another country to a parent(s) who is/are a United States citizen/s, or by having parents who are citizens of different countries. Anyone who becomes a naturalized U.S. citizen is required to renounce any prior "allegiance" to other countries during the naturalization ceremony; however, this renunciation of allegiance renunciation of citizenship to those countries.
2018 Sierra Leonean general election
The previously dormant issue of dual citizenship was raised during the election. The ruling party, APC, raised the issue citing Section 76(1) of the 1991 Constitution, which states that "“No person shall be qualified for election as a Member of Parliament — if he is a naturalised citizen of Sierra Leone or is a citizen of a country other than Sierra Leone having become such a citizen voluntarily or is under a declaration of allegiance to such a country.”" The dual citizenship debate engulfed three presidential candidates: Kandeh Kolleh Yumkella of the National Grand Coalition (NGC), Dr. Samura Kamara of the All People's Congress (APC), and Mohamed Kamarainba Mansaray of the Alliance Democratic Party (ADP). Yumkella claimed he denounced his American citizenship in 2017, while Mansaray said he has never held any other citizenship. Two cases were brought to the Supreme Court: one filed on 5 February by an activist of the ruling All Peoples Congress party claiming that Yumkella is a "naturalised citizen" and therefore unqualified to contest the elections; and another filed by Charles Margai, a flag bearer for People's Movement for Democratic Change (PMDC), claiming that the APC’s standard bearer is unqualified to run for president because he is a dual citizen and did not resign his ministerial position – for which he was paid from the state’s consolidated revenue – long enough to meet the constitutional requirement. The defense of Yumkella appealed to the Supreme Court to have two of the judges removed from the case, then the matter was adjourned until 28 March (after the 7 March election) for the two new judges to study the case. The dual citizenship issue will be remembered by citizens for propagating the slang term "two-SIM" to describe a person with dual citizenship.