The party also outperformed the governing National Democratic Congress in the parliamentary election by increasing its seats from 122 to 169 to form the majority, while the NDC saw its representation drop from a majority 148 to 106.
But the former President, who has set the next four days to tour the region to kickstart his campaign to lead the National Democratic Congress (NDC) going into the 2020 elections, related the outcome of the 2016 polls to the weights of alcohol and water.
He grounded his argument on the fact that alcohol weighs less in volume than water indicating that it is when one carries the two that the difference in weight can be ascertained.
To him, the Ghanaian electorate who voted massively for Nana Akufo-Addo to earn him and the New Patriotic Party (NPP) a massive one-touch victory are the best judges.
Therefore, the victory for the NDC come 2020 is certain, he told the excited gathering who responded simultaneously with cheers.
Mr. Mahama is kick-starting his campaign to lead the opposition NDC in the 2020 presidential election from Awutu Senya East and West in the Central region.
He is expected to visit other constituencies during his four-day campaign tour of the region to share his vision with delegates and seek their mandate to lead the party.