人心向背

Explanation: To: merger, refers to the support; back: departure, referring to opposition. Refers to the support of or against the masses. 　　Usage: The main predicate; as subject, predicate, object; refers to the people's attitude to things 　　Source: Song Wei Weng "Heshan Collection": "Master Lao Cai Satan, your money light objects, often produced not only dried up, easy to shake the roots, the popular support of a few people." 　　Examples: Rise and Fall of the country lies in ~. Thesaurus:  a just cause enjoys abundant support