"We have the same rights as other Americans", another Puerto Rican resident said, claiming that Trump isn't doing everything he can and should be for them.
After a bipartisan outcry this week, the agency appeared to walk back its decision.
San Juan Mayor Carmen Yulin Cruz says many in the USA territory still need the water and food they have been getting from FEMA.
The remaining FEMA supplies will be turned over to the Puerto Rican government to finish distributing, NPR said. According to recent USA data, 65.4 percent of the island now has electricity, 86 percent of the residents have potable drinking water, 96 percent of the island has regained their cell phone service and 84.3 percent of gas stations have been deemed operational.
Domingo Marqués, a clinical psychologist who lives in San Juan, said many outlying towns still have serious problems with food and water.
A third of islanders still lack electricity, and some argue it is too early to end emergency aid. Yulin tells reporters in Washington that about 35 percent of residents still don't have power and can't keep food in their homes.
Cigarettes As Bad For Your DNA As Smoking Tobacco, Study Says
Dr Tang highlighted the increasing popularity of e-cigarettes and vaporisers in recent years as motivation for the research . Not only might they act as a gateway to tobacco smoking, e-cigarettes by themselves may not be as harmless as once thought.
FEMA says it has more than 46 million liters of water, two million Meals Ready to Eat and two million snack packs in Puerto Rico ready for distribution, if needed. "You have to remind them, Puerto Rico is a USA territory and its residents are US citizens". They added another important argument, relevant to both Puerto Rico and Florida: "Families will continue to leave the island if their basic needs are not met - the most fundamental of which are food and water".
"To everyone still recovering in Texas, Florida, Louisiana, Puerto Rico, the Virgin Islands, California and everywhere else - we are with you, we love you, and we will pull through together", Trump said Tuesday.
This week's sudden turnabout suggests bipartisan political pressure still works - especially when it is wielded by members from Florida, the nation's biggest presidential battleground state.
A win would have helped establish the top priority of GO debt relative to other credits in Puerto Rico, a central question as warring creditor classes litigate competing claims to the island's limited funding streams.
A US federal judge on Tuesday dismissed a lawsuit by some of Puerto Rico's bondholders, who had argued that the USA territory broke the law by defaulting on constitutionally-guaranteed debt despite having the money to make payments.