Nick Thomas-Symonds MP @NickTorfaen
Sir David Butler transformed the way we analyse elections. I had the privilege of meeting him on several occasions: he was a charming and generous man - a lovely person who I know will be much-missed. I am thinking of his family and friends this evening. May be rest in peace. — PolitiTweet.org
Michael Crick @MichaelLCrick
Sir David Butler, the father of psephology, or election science, died today at the age of 98.