President Donald Trump launched an early morning Twitter attack on the mayor of San Juan, saying she is being manipulated by the Democratic Party, and told to be “nasty” to him.

He followed that up by blaming her leadership for the slowness in repairs, while calling Puerto Rican workers lazy, saying they “want everything done for them.”

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See: ‘Get out of your golf course cocoon’: NYC lawmaker shreds Trump for ‘despicable’ attack on San Juan mayor

Throughout Friday, Mayor Carmen Yulin Cruz made multiple appeals to mainland U.S. citizens that “people are dying” in Puerto Rico, and was mildly critical of the president for not sending more help to the U.S. territory that was ravaged by a hurricane.

Later in the day, Cruz ramped up her appeal, specifically addressing Trump, saying, “We are not as second-class citizens, but as animals that can be disposed of.”

Trump, who has a history of over-reacting on Twitter to even the smallest slight, lashed out at Cruz early Saturday morning, tweeting, “The Mayor of San Juan, who was very complimentary only a few days ago, has now been told by the Democrats that you must be nasty to Trump.”

You can read the tweets below:

The Mayor of San Juan, who was very complimentary only a few days ago, has now been told by the Democrats that you must be nasty to Trump. — Donald J. Trump (@realDonaldTrump) September 30, 2017

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…Such poor leadership ability by the Mayor of San Juan, and others in Puerto Rico, who are not able to get their workers to help. They…. — Donald J. Trump (@realDonaldTrump) September 30, 2017

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…want everything to be done for them when it should be a community effort. 10,000 Federal workers now on Island doing a fantastic job. — Donald J. Trump (@realDonaldTrump) September 30, 2017

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The military and first responders, despite no electric, roads, phones etc., have done an amazing job. Puerto Rico was totally destroyed. — Donald J. Trump (@realDonaldTrump) September 30, 2017

Fake News CNN and NBC are going out of their way to disparage our great First Responders as a way to “get Trump.” Not fair to FR or effort! — Donald J. Trump (@realDonaldTrump) September 30, 2017