Trump, who visited Puerto Rico on Tuesday, has repeatedly noted that the infrastructure of the financially struggling island was already weak before the hurricane hit. In a series of tweets Sept. 25, Trump wrote that Puerto Rico was "already suffering from broken infrastructure & massive debt" and had an "old electrical grid, which was in terrible shape." During his visit Tuesday, Trump told reporters that it's difficult to fix the power grid because it "was devastated before the hurricanes even hit," and that federal workers have been bringing dozens of generators to the island to power hospitals, government buildings, shelters and other key locations.