Where exactly has Buhari lost votes after 2015? Nowhere. The Man waxes stronger and his enemies wail more bitterly.
In Anambra, where APC lost to the PDP in 2015, APC defeated PDP in the last election despite the rantings of IPOB. In Ekiti, PDP led APC with about 100k votes in 2014, in 2018, APC cleared the 100k votes and still defeated the PDP with thousands of votes.... PROGRESS.
In Rivers, APC has the 3 Senators today, they are winning elections confidently and PDP is jittery. In Akwa Ibom, APC is on rampage just as it is in Delta while Edo remains rocksolid. Famous 2015 Jonathanians like Ken Nnamani, Nwobodo, Uzordimma, Ayogu Eze, Chime, etc are working 24 hours in the SE to win the zone for PMB and frustrate the PDP to accept their grave verdict.
Yet, Saraki is losing Kwara, Dino is losing Kogi, Dogara is losing Bauchi, Kwankwaso and Tambuwal are looking helplessly at their end. In Adamawa, only Atiku is in the PDP. Gulak who was Jonathan man in 2015 is with PMB. Same with Ribadu. Aisha is there, the Governor is there, SGFs both current and former are there.... Lol
PDP best bet was Osun where APC had a divided House but they still couldn't win, they lost it. Now APC is waxing stronger in Osun. Niger State is no going area.
APC is carefully pulling down the remnants of the PDP in their wailing Strongholds but their blind offsprings on social media are not aware, they have willingly opted to die of avoidable shock in FeBuhari.

2019 will surprise both PDP and APC

I am still searching, bros. Seriously, I refused to be carried away by the gales of tsunami because PDP is a Siamese of a witch and a wizard active at night and in the day. One can't relax until it is cremated and its ashes scattered in the 5 seas of the earth