Ruzin je pristao na kandidaturu nakon što se Srdjan Kerim, jako poštovan bivši ministar vanjskih poslova i predsjednik Generalne skupštine UN-a, odbio kandidirati ispred SDSM-a.
Ruzin agreed to run after Srdjan Kerim, a highly regarded former foreign minister and president of the UN General Assembly, declined to run as the SDSM candidate.