Major commentary on the US presidential election will wait until the nominees are clear. I don't want to write a full thing on Huckabee/Obama now and have Huckabee/Clinton or something completely different. It's still only Iowa (who decides to start this thing so early now- Congress should step in).
Congress would only make itself more unpopular by stepping. Not that I disagree, but Congress and the federal government are much weaker than they should be in the US. People put way too much stock in the "states as independent" notion.