Lin-Manuel Miranda is warning Congress and the Trump administration that displaced individuals from Puerto Rico are future voters who are frustrated by the response to the hurricane that ravaged the island earlier this year.

"It’s becoming increasingly clear that helping Puerto Rico is not just the right thing to do, it’s also the politically smart thing to do," the "Hamilton" playwright and actor wrote in an op-ed published in The Washington Post.

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More Puerto Ricans continue to come to the mainland every day, he wrote.

"These are soon-to-be voters, moving to Florida, to Texas, to South Carolina, to Pennsylvania, just in time for midterm elections," he wrote.

Miranda blasted recent action by Congress that will hurt Puerto Rican efforts toward recovery, naming tax-reform legislation that may include an import tax.

He called the federal government's response to the disaster in Puerto Rico "painfully slow and not commensurate with the hurricane response in Texas and Florida."

The Trump administration's response to the disaster in Puerto Rico was heavily criticized in Hurricane Maria's aftermath, with people saying the federal government should have done more and done it more quickly.

Miranda also offered a list of needed changes by Congress and President TrumpDonald John TrumpCNN's Camerota clashes with Trump's immigration head over president's tweet LA Times editorial board labels Trump 'Bigot-in-Chief' Trump complains of 'fake polls' after surveys show him trailing multiple Democratic candidates MORE's administration in order to help the island recover from the hurricane damage.

"Puerto Rico needs a lifeline that only Congress and the Trump administration can provide," he wrote.

He urged Congress to move "quickly on the $94 billion aid package requested by the Puerto Rican government" and wipe out the island's debt.

"Finally, Puerto Rico cannot pay its debt to creditors. President Trump said it best during his rocky visit, before his administration walked his comment back — “wipe that out” and move on," he wrote.

"Puerto Rico’s creditors should do the right thing and walk away. It is the only way forward."

Miranda said the last few months have been "trying" for those on the island.

He wrote that his Uncle Elvin hasn't had electricity for 84 days.

"Hundreds of thousands of Puerto Ricans on the island cannot do the simple things we all take for granted," he wrote.

"Add to this lack of power the destruction of thousands of homes, rural areas still isolated, small businesses not operating and an ever-increasing migration of Puerto Ricans to the U.S. mainland. It will take a long time for Puerto Rico to be totally functional again under the best of circumstances."

Miranda said his friends in the artistic community can continue to fundraise for the island, adding there is no "shortage of compassion and goodwill for Puerto Rico among the American people."

"But it must be matched by the recognition of our government that the American citizens of Puerto Rico need, demand and require equal treatment," he wrote.

"I remain in awe of the generosity of everyday Americans toward their fellow citizens. Congress, meet the American people where they already are. My Uncle Elvin and so many others wait in Puerto Rico."
 
Miranda, whose parents are Puerto Rican, has been sharply critical of the Trump administration's disaster response.
 
Last month, he headlined the Unity March for Puerto Rico in Washington, D.C. He said the core message of the rally was to let Trump know that "we still need your help."