From Nigerian perspective, i can name three types of rigging propounded by our politicians, they are (a) administrative rigging - by Chris Ngige when Peter Obi won him in the anambra governorship race. (b) microsoft rigging - by Gen. Buhari when Goodluck dusted him in the presidential race. (c) scientific rigging - by Prince Abubakar Audu after loosing the recently conducted kogi governorship polls. Nl, if u know any other type of Nigerian rigging, please add to the list !