The media doesn't know WTF is going on, they just know vote totals. This link actually talks about the power plays going on behind the scenes.
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Allawi does not expect to win a majority, or even a plurality of the vote. To stay in power, he appears to be attempting to trade on fears of clerical and Iranian influence in the UIA and even hoping to cherry-pick allies from within the improbably broad Shiite coalition. The goal would be to use the provisions of the Transitional Administrative Law (TAL) governing the process to parlay a minority share of the vote into a leading role in government. That's because the TAL, drawn up by U.S. administrator Paul Bremer, essentially requires the support of two thirds of the National Assembly for a new government. The process begins with the Assembly choosing, by two thirds majority, a president and two vice presidents, a troika that must unanimously agree on a prime minister. So, the thinking goes, even without a plurality or a majority, as long as Allawi can assemble a coalition that exceeds one third of the Assembly members, he can filibuster himself a place as a "compromise" candidate for prime minister.
Allawi's best bet would be to draw the Kurds into his own bloc. But the Kurds, secular and seperatist, they are hardly natural allies for the moderate Islamist-nationalist UIA list assembled under the auspices of Grand Ayatollah Ali Sistani. Still, they may see the Sistani list as a more viable government, if they can strike a deal that gives the Shiites the power they seek in Baghdad in exchange for de facto Kurdish independence in the northern provinces — largely at the expense of Sunni Arabs and ethnic Turkmen in Kirkuk and other contested areas. Ultimately, however, the Kurds are likely to choose the horse that appears most likely to secure their interest in entrenching, and even expanding, their de facto independence.
http://www.time.com/time/world/article/0,8599,1024482,00.html