Hillary 2016 was basically Obama 2008 plus a few of her original states. So I don't see what your point is, because both paths are probably what would take Booker to the nomination anyways, especially if he can consolidate the South.
No, it's more like Sanders 2016 was Obama 2008 minus the South, like I said, Obama's win was due to African-Americans + those left-wing dems. It was the left-wing dems that pushed Obama over the edge in 2008, he needed both left-wingers + african americans to beat hillary's moderate coalition. The Hispanics in the SW voted for Hillary on both counts.