Both leaders competed in the 2015 presidential elections and Lungu won by a very narrow margin .
The race was expected to be a close race mainly between Edgar Lungu of the Patriotic Front and Hakainde Hichilema of the United Party for National Development .
Both leaders competed in the 2015 presidential elections and Edgar Lungu won by a very narrow margin .
The race was expected to be a close race mainly between Edgar Lungu of the Patriotic Front and Hakainde Hichilema of the United Party for National Development .