We can pluck a few observations from political expert Michael Barone’s assessment over at NRO and get the current picture.

Clinton and Obama have split the Democrats into rival
tribes — blacks versus Latinos, young versus old, upscale versus
downscale, Kennedys versus Clintons. They may eventually smooth over
their differences as Democrats have before. But right now, the Clinton
and Obama campaigns’ paths seem headed in a direction dangerously close
to the intraparty equivalent of the 2000 Florida controversy.

Democratic voters in contests to come and Democratic super delegates
may want to select the candidate with the best chance of winning. But
that’s a difficult assignment. Hillary Clinton polarizes general
election voters right down the middle, which means (a) she can win and
(b) she can lose. Barack Obama, with his soaring rhetoric about what
unites Americans, has a higher upside potential but also, with his lack
of experience, a lower downside potential, as well. Look for a long and
harrowing contest.

It has been nothing but, and getting more so. This is a fascinating
race, and a great and historic example of democracy in action.