Blogger Publius: It all comes down to federalism.

CNN: Iraq's three major groups -- Kurds, Shiite Arabs and Sunni Arabs -- continue to debate the proposed constitution, striving to win over critics by Sunday. But consensus has remained elusive since August 15, when legislators missed their first deadline to submit to the transitional national assembly a draft of laws to govern Iraq's new democracy. [...] Although one Sunni Arab official said he disliked the plan, the Sunnis continued to huddle over the suggestions. [...]