Scott Pruitt has resigned as head of the Environmental Protection Agency after a string of controversies involving his leadership, President Trump announced Thursday on Twitter. "Within the Agency Scott has done an outstanding job, and I will always be thankful to him for this," tweeted Trump, who added that EPA Deputy Administrator Andrew Wheeler would take over as acting administrator effective Monday. ...on Monday assume duties as the acting Administrator of the EPA. I have no doubt that Andy will continue on with our great and lasting EPA agenda. We have made tremendous progress and the future of the EPA...