From NBC's Chuck Todd
Per multiple sources inside the closed Rules and Bylaws Committee lunch, Obama actually had the votes to get a 50-50 delegate split out of Michigan -- but by just a vote or two.

However, it was decided to go with the 69-59 split to win a larger majority. That measure passed 19-8.

*** UPDATE *** Also, according to those with knowledge of the Michigan agreement, it is fair to claim Clinton the winner of Michigan. But they caution against counting her popular vote in the state.