SAN JUAN, P.R. — Gov. Ricardo A. Rosselló of Puerto Rico announced his resignation on Wednesday night, conceding that he could no longer credibly remain in power after an extraordinary popular uprising and looming impeachment proceedings had derailed his administration.
In a statement posted online just before midnight, Mr. Rosselló, 40, said he would step down on Aug. 2.
He said his successor for the moment would be the secretary of justice, Wanda Vázquez, a former district attorney who once headed the island’s office of women’s affairs. Ms. Vázquez was next in line under the commonwealth’s Constitution because the secretary of state, who would have succeeded Mr. Rosselló as governor, resigned last week when he also was caught up in a chat scandal that enveloped the administration.