look like winning an election is to ban them. For example, the Islamic Salvation Front (FIS) was banned in the early 90s in Algeria.
http://www.algeria-watch.de/farticle/elections_02/death_dissent.htm1989 Islamic Salvation Front (FIS) founded
1990 FIS wins 55% in local elections in first free vote
1991 June FIS calls a general strike. Military declares a state of emergency
Nov First armed islamist attack in Guemmar, in the east
Dec FIS comes top, with 47% of vote, in first round of national elections.
1992 Jan-Feb Parliament dissolved by decree, state of emergency continued. Army grabs control
March FIS banned
The article (originally from The Guardian) estimates 100,000 have died in the fighting in the decade since then. Algeria's population is only a little more than Iraq.