For Democrats, age is just a number

(CNN)Is it possible for a senior citizen to be the Democratic nominee for President of the United States in 2020? At the same time, their ascendancy is hardly a given. Remarkably, experience is often not an asset in campaigns. And presidential candidates who have less time in public life and elected office can create their own platform that is aligned with the electorate at the time without worrying it will conflict with their own record. Sign up for our new newsletter. Join us on Twitter and Facebook The question is not about how old a candidate is, but how they will go about bringing about real change — through radical overhaul of policies or through working through a more incremental …