[10] In 2015, the APC won the majority of seats in the Senate and the House of Representatives, although it fell shy of winning a super-majority to override the ability of PDP to block legislation.

[29][30][31] Ahead of the elections, the party presidential primary was held on 10 December 2014 with former military dictator Muhammadu Buhari winning by a significant margin.

[32] In the federal elections on 28 and 29 March 2015, Buhari emerged victorious over incumbent Goodluck Jonathan by 2.6 million votes—a margin of nine percentage points.

At the start of the legislative session in June 2015, the picks of the party leadership and Buhari for legislative leadership—Ahmad Lawan (Yobe North) for President of the Senate and Femi Gbajabiamila (Surulere I) for Speaker of the House of Representatives—lost elections to those offices as dissenting APC members and PDP members voted for different leadership: Bukola Saraki (APC-Kwara Central) for Senate President and Yakubu Dogara (APC-Bogoro/Dass/Tafawa Balewa) for Speaker of the House.

[52] Although Buhari initially pushed for Odigie Oyegun to continue in the position, he eventually agreed with governors in April 2018 to hold party congresses and elect new leadership.

[54][55] After direct primaries where Buhari was the sole candidate, he advanced to the general election where he defeated Atiku Abubakar of the People's Democratic Party by a margin of 14 percentage points—nearly 4 million votes.

Tensions rose in November 2019 when the state APC in Edo State—Oshiomhole's home state—suspended his party membership and argued that a suspended member could not serve in a leadership position.

[64][65] Eventually litigation decided the dispute, with a High Court suspending in Oshiomhole as Chairman in March 2020 based on his membership suspension.

[75] Despite a contentious campaign period rife with allegations of misconduct and vote-buying, the APC presidential primary on 7 and 8 June 2022 was held peacefully with former Governor of Lagos State Bola Tinubu defeating Rotimi Amaechi, Yemi Osinbajo, and eleven other candidates.

[78][79] The APC is generally considered to be a party that favours controlled market economic policies, and a strong and active role for government regulation.

[4] On 1 November 2017, Aliyu Ibrahim Panda became the first candidate under the party to declare his intention to seek the office of the president of Nigeria in the 2019 elections.