Elections can lead to more violence for a range of reasons, but it can't help that monitors and security forces have to cover the whole country. This likely wouldn't work for general presidential elections but could work for the legislature. I don't think staggered terms are part of the problem with our Senate. I'm not sure if it would be better to have regional blocks or just a mix of elections throughout the country. Blocksb would be easier to administer but they may throw off the politics by varying the importance if regions.
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