Sen. Marco Rubio held a news conference at his Senate office in Miami-Dade County Wednesday to discuss the latest developments regarding Zika.
He wants Congress and the White House to approve funding to battle the virus.
“I find it inexcusable, as I have said repeatedly, that Congress waited for months and did absolutely nothing,” Rubio said.
Rubio said he blames both parties. He is also upset with President Obama.
“It’s inexcusable that the President of the United States and this administration is sitting on over $300 million re-purposed from Ebola to Zika that remain unspent,” Rubio said.
Earlier this week, the Centers for Disease Control and Prevention issued a health advisory against visiting Miami's Wynwood district.
As of Wednesday, there are 15 Zika cases in Florida acquired from local mosquitoes.
The director of the Centers for Disease Control and Prevention says officials are finding it challenging to eradicate mosquitoes in the Wynwood area.
CDC Director Tom Frieden told ABC's "Good Morning America" Tuesday that officials issued a rare travel warning advising pregnant women to avoid Miami's Wynwood arts district because mosquito counts are still high in the area.
Frieden said it's possible mosquitoes are resistant to the insecticide being used, but it could take weeks for federal and state officials to figure that out. He said there also could be breeding sites that haven't been destroyed.
He said mosquito control is difficult in the neighborhood because it has industrial, commercial and residential development. The mosquito that carries the virus is generally difficult to eradicate.