His 36 opponents, some of whom were newcomers to politics and whose political parties had neither structures nor influence, would split opposition votes. (punchng.com)
The voting population of gerrymandered districts is distributed so as to provide «safe» margins of victory in many districts while «wasting» opposition votes concentrated in a few districts. (politics.stackexchange.com)
Deepening inequality, sporadically high inflation, persistently high unemployment, and deepening poverty might translate into opposition votes. (blog.politics.ox.ac.uk)