The greatest strength Michael D Higgins will have heading into a fresh presidential campaign is that the public feel they already know everything about him.
His upbringing was tough. His battle to get into Irish politics was tough. And his race to become President in 2011 was tough.
Having come through that unforgiving and unforgettable campaign relatively unscathed, it would be easy to assume Mr Higgins should walk the sequel. But there is a certain enigma to the man that heads our country. TDs who worked alongside him over nearly three decades in Leinster House recall him as being a bit on the wild side.