Emmanuel Grégoire leads a left-wing and environmentalist coalition.
High cost of living is a major concern for Parisians.
Urban transformation is a key theme resonating with voters.
Strategic angle: Emmanuel Grégoire, the Socialist mayor-elect, faces challenges in addressing the concerns of Parisians amid rising living costs.
Emmanuel Grégoire leads a left-wing and environmentalist coalition.
High cost of living is a major concern for Parisians.
Urban transformation is a key theme resonating with voters.