The basic political math of any Democratic gubernatorial candidate goes like this: run up the score in New York City, win in the suburbs and don't get creamed upstate. (politico.com)
But those who think that Mr Cameron has not done the complicated political maths on this are simply wrong. (conservativehome.blogs.com)
It's like political maths: when you're scrutinising nothing, nothing is likely to be the end result. (politics.co.uk)