Russian President Vladimir Putin put all of the Kremlin's "administrative resources" behind the presidential candidacy of DmitryMedvedev, and most of the people who worked on Medvedev's campaign aremore strongly allied with Putin than with the new president.
http://www.rferl.org/featuresarticle/2008/03/e40b38e0-6f45-475a-bae5-a51cd13ccac8.html