If the only way you have to win an election is to threaten violence, even if you win, how can you claim a mandate?
Sounds like a recipe for civil war
Look at what happened in Kenya in 2008. Obama's favored candidate lost in the election, and his supporters unleashed a campaign of violence against the rest of the country. Eventually, the UN stepped in to negotiate a settlement, which wound up with Obama's favored candidate in control of a coalition government.
Just because you can't win at the polls does not mean it is all over...