Ibrahim Boubacar Keita wins endorsement of Dramane Dembele Mali's presidential favourite receives surprise backing from a rival ahead of a run-off vote in its first polls since a coup toppled one of west Africa's most stable democracies. As the two main candidates lobbied for support from the also-rans, frontrunner Ibrahim Boubacar Keita won a pivotal boost with the endorsement of third-placed candidate Dramane Dembele. Images and soundbite.