Gov. Ricardo Rossello reacts by saying a political feud with San Juan's mayor shouldn't be the basis of Trump's stance on the issue.
The incident sets back efforts to restore electricity across the island, which is struggling to recover from destruction caused by Hurricane Maria in September.
The president's petulant tweet storm Saturday accused Puerto Ricans of wanting everything done for them.
The president argues on Twitter that Carmen Yulin "and others in Puerto Rico" have demonstrated "poor leadership ability" after the devastating hurricane.
Acting Homeland Security Secretary Elaine Duke draws a sharp rebuke from San Juan's mayor for seeming to play down the suffering in Puerto Rico.