you think that because some extreme right- or left-wing party has, say, the support of ten percent of the population, their candidate will get ten percent of the votes. No: these baseline voters should be classified as “inflexible” and will always vote for their faction. But some of the flexible voters can also vote for that extreme faction, just as non-kosher people can eat kosher. These people are the ones to watch out for, as they may swell the number of votes for the extreme party.
