Does electoral fraud encourage citizen post-electoral political protest? Much of the scholarship on electoral protests has focused on nationally-prominent street rallies occurring in national capitals. By contrast, the proclivity of citizens to pick up on fraud perpetrated in the sub-national region in which they reside and vote, and to challenge it by engaging in street rallies in provincial towns, has remained under-researched. To nuance existing scholarship, we analyse the likelihood that local citizens would pick up on electoral irregularities perpetrated in their locality / region and engage in post-electoral protest. Specifically, we analyse author-gathered data for some 5,000 regional protests, and voting results for 95,415 precincts...