As the annual Conservative Parry conference drew to a close last night, Theresa May entered the stage to the tunes of Abba’s “Dancing Queen” with a few moves and a smile of her own. Unlike last year, when had a cough which would not stop and a stage collapse to deal with amongst other things, she was able to enjoy one hour of calm as she delivered her closing speech. That is one hour in the past seventeen months where things seemed to go her way.