Note 1: This post may get updated as additional information on Ankara’s election comes in.

Note 2: This post has now been updated with data from Istanbul – see here)

Note 3: Added two graphs showing party-specific relationships between vote shares and invalid ballot shares. Hat tip for doing these kinds of graphs comes from Twitter user @merenbey.

Note 4: Added heterogenous results showing CHP being penalized by higher invalid shares of ballots much more in above-median pro-CHP districts than in below-median pro-CHP districts.

Having seen tweets on numerous alleged voting irregularities in Turkey and thanks to Twitter user @erenyanik I came across this CHP/STS dataset of voting data in the Greater Municipality of Ankara, one of the tightly contested (less than a percentage point in the vote share) mayor elections between Melih Gökçek and Mansur Yavaş. The dataset includes 12,230 ballot boxes across 1,682 voting locations in 25 districts in Ankara. I didn’t collect the data itself and therefore this analysis should be taken as highly preliminary. Continue reading →