San Juan Mayor Carmen Yulín Cruz on Wednesday slammed the White House's position that its response to Hurricane Maria was "historic," instead calling it a "historic failure."

Cruz responded a day after White House press secretary Sarah Huckabee Sanders said that the Trump administration is still working to provide assistance to Puerto Rico as it deals with the aftermath of the hurricane.

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“The federal response once again was at a historic proportion,” Sanders told reporters. "We’re continuing to work with the people of Puerto Rico and do the best we can to provide federal assistance, particularly working with the governor there in Puerto Rico, and will continue to do so."

Cruz pushed back against that statement, saying on "MSNBC Live with Hallie Jackson" that the administration's response has been a failure.

Cruz added that she hopes President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE learns what he "didn't do" and how to avoid future mistakes when he visits the Federal Emergency Management Agency (FEMA) on Wednesday.

"It's a historic failure, that's what it is," Cruz said.

Asked whether she has confidence in FEMA, Cruz said "not at all."

. @HallieJackson: Mayor Cruz, do you still have confidence in FEMA?



San Juan Mayor Carmen Cruz: No, not at all.



Watch pic.twitter.com/G7y3q0SA3w — MSNBC (@MSNBC) June 6, 2018

Cruz made the comments amid increasing scrutiny over Puerto Rico's death toll in the aftermath of Hurricane Maria. Cruz said last week that Trump "completely looked away" from the region after a study in the New England Journal of Medicine concluded that the official government death toll was substantially underestimated.

The study concluded that nearly 5,000 people died as a result of the hurricane, about 70 times more than the official government estimate of 64. The study led to Puerto Rico's Institute of Statistics filing a lawsuit seeking updated information on the death count.

Puerto Rico responded by releasing death records that showed there were at least 1,400 more deaths in the months after Hurricane Maria than during the same time period the previous year, according to The Washington Post.

Cruz, a frequent critic of the Trump administration's response to Hurricane Maria, posted a photo of herself last month that showed the revised death count from the study. She, like many officials, has criticized Trump's response to the hurricane and the lack of transparency over the death count.