His best performance was in 2012 , with 18.66 % of the votes .
Isaias Samakuva , leader of UNITA , has run for President two times ( 2008 and 2012 ) .
Isaias Samakuva 's best performance was in 2012 , with 18.66 % of the votes .
Isaias Samakuva , leader of UNITA , has run for President two times ( 2008 and 2012 ) .