墨西哥的政府机构艰难地顶住了左翼反对派几乎是暴动般的冲击，左翼人士一心想阻止卡尔德龙就任总统。 同样难以应对的还有革命制度党（PRI ） ， 他们一门心思想看卡尔德龙登上宝座，而后再一败涂地、草草收场。
Mexico’s institutions withstood – just barely – the onslaught of a virtually insurrectional left-wing opposition, bent in vain on stopping Calderón’s inauguration, and of a resentful Partido Revolucionario Institucional (PRI), increasingly dedicated to allowing Calderón to take office, and then fail miserably.