Nigeria will hold a presidential election on February 16, 2019, and all eyes are on this election as a test to prove the strength of Nigeria's democratic norms, values and unity.
This year, there are five main candidates  in the race out of 73 total presidential candidates . Two major contenders include the incumbent President Muhammadu Buhari  (All Progressive Congress) and the opposition candidate and former Vice President Atiku Abubakar (Peoples Democratic Party).
The other three candidates, Obiageli Ezekwesili, Kingsley Moghalu and Omoyole Sowore, have been termed the “third force” because they lack political experience but still present significant competition.
Amid the cacophony of electoral campaigns and the attendant passion from supporters — both online and offline — here are the key issues that may get lost in the noise.
Old and the strongman syndrome
Nigeria's two major contenders, Buhari, 76, and Atiku, 72, both have long histories of political engagement in Nigeria, leaving many to question their health and longevity as presidential hopefuls.
With the end of longtime rulers like South African President Jacob Zuma, 76, and Zimbabwe's Robert Mugabe, 94, who was forced out of power after 37 years as president, it has felt like an end to regimes led by the old and strong men  in Africa. But this hope has not lasted. Paul Biya , 84, was re-elected as president of Cameroon, making him the oldest political leader in sub-Saharan Africa.
The health of Nigeria’s leaders became a major political consideration after late President Umaru Musa Yar’Adua  died in office on May 5, 2010. Yar’Adua's illness and continued absence created a power vacuum  because he did not hand it over to his deputy , Goodluck Jonathan, before he traveled abroad for treatment.
Incumbent President Buhari has made about ten trips  to the United Kingdom for medical treatment of an undisclosed ailment. He has spent “more than 170 days in London  on official medical leave since becoming president in 2015,” according to the New York Times.
Can younger candidates stand a better chance? This year, there are 10 candidates under the age of 40  and 16 candidates between the ages of 45-49. But younger candidates may not fare well because Nigeria’s long history of military rule has embedded a culture of political actors who have both the clout and wealth to fund party politics and this takes time and connections to cultivate.
Buhari and Abubakar both have strong political bases. Buhari has a loyal following in the northern part of the country, while Abubakar is perceived as widely accepted across different tribes and religions in the country. Their ages do not appear to be a factor in garnering support and loyalty.
Ethnicity and religion
Nigeria is what's known as an ethnic fault line state — ethnicity and religion have long played a central role in elections and general politics. The 2015 elections showed that the two “major contestants received  bloc votes from their various states and geopolitical zones,” according to an article in the Also, ethnic sentiments were used to appeal to voters. Ethnocentric hate speech surged both online and offline, before  and after  the 2015 presidential elections.
Similarly, in 2017, some Nigerian writers  raised alarm over the vile ethnic hate speech that almost consumed the nation . Former President Goodluck Jonathan lost in the polls over his failure to handle the Islamic militant group Boko Haram's bombings that rattled the nation and caused widespread insecurity. Boko Haram's abduction of schoolgirls in Chibok  led to a global outcry of #BringBackOurGirls when it was clear to citizens that the government was not doing enough to intervene.
Buhari and Abubakar will both rely on ethnic alliances to win votes. Buhari, a northerner (Fulani/Muslim), has retained Yemi Osibanjo as his vice-presidential candidate in order to garner votes from the southwestern (Yoruba/Christian) part of the country. Abubakar, a northerner (Fulani/Muslim) has picked his vice-presidential candidate from the southeastern (Igbo/Christian) part of the country.
Because Buhari and Abubakar are from the same ethnoreligious group, tensions may not be as high as they were in 2015 elections when Jonathan Goodluck, a southern minority Ijaw Christian, ran against Buhari.
Free speech and press freedom
Buhari's administration has been accused of major human rights violations and many hashtags  have trended on social media in 2018 calling for the release of detained netizens and journalists.
On March 17, 2016, Nigerian journalist Yomi Olomofe was brutally assaulted  and detained by Nigerian police in an attack against free speech. Nigerian journalist Daniel Elombah and his brother, Timothy Elombah, were arrested on New Year's Day 2017 for a story they did not even write . In August that year, Nigerian trader Joe Fortemose Chinakwe was arrested by for naming  his pet dog “Buhari”.
Jones Abiri, publisher of Weekly Source, was arrested  on July 21, 2016, by state security (DSS) agents at his office in Yenagoa, Bayelsa State. #FreeJonesAbiri  trended for several days on Twitter until Abiri was released  on August 15, 2018, after a two-year detention.
#FreeSamuelOgundipe trended when Nigerian journalist Samuel Ogundipe was detained for three days  by Nigeria’s Special Tactical Squad after refusing to name his sources for a story concerning the forceful prevention of lawmakers by security agents from entering the Nigerian National Assembly in early August 2018.
Deji Adeyanju, a political activist and member of the opposition party, was re-arrested in December 2018 and has been in detention since then due to “a fresh petition.” 
Buhari has openly expressed his aversion to a free press and freedom of speech. In an address to lawyers  last year, he stated that “the rule of law must be subject to the supremacy of the nation’s security and national interest.”
On the other hand, Abubakar has promised  to run “an inclusive governance structure” that will harness Nigeria's diversity and uphold “a just and fair environment where the rights of all citizens are protected by a transparent government.”
Only time will tell how these issues will unfold throughout the election period and beyond.