King David or Chief David?

Interesting piece at WaPo about current archaeological discoveries in Jerusalem. Excerpt:

Some archaeologists believe Jerusalem was no more than a tiny hilltop village when it served as David's capital. The discovery of a palace or other large public building from David's time would strengthen the opposing view that he and his son, Solomon, presided over a civilization grander than the collection of rural clans some historians say made up the Jewish kingdom.
Whether David was a tribal chieftain or visionary monarch matters deeply to the Jewish historical narrative -- the story of a single people, once ruled by kings, and later dispossessed of its homeland until the modern state of Israel was created nearly 2,000 years later following the horrors of the Holocaust.