(CNN) President Donald Trump Wednesday sought to lay blame on the Obama administration for slowing down new diagnostic testing but there's no evidence to support that claim.

"The Obama administration made a decision on testing that turned out to be very detrimental to what we're doing," Trump said Wednesday during a meeting on addressing the coronavirus outbreak . "And we undid that decision a few days ago so that the testing can take place in a much more rapid and accurate fashion."

The White House did not offer a comment when asked to explain why the President said it was an Obama-era decision, but a source close to the coronavirus task force told CNN's Jim Acosta it's not clear where Trump got his information that an Obama administration rule had somehow slowed diagnostic testing.

The President may have been referring to an Obama administration proposal that would have allowed the Food and Drug Administration to have more oversight over approving diagnostic tests. That proposal did not go through.

When asked what Obama administration decision Trump might be referring to, Peter Kyriacopolous, chief policy officer at the Association of Public Health Laboratories, said: "We aren't sure what rule is being referenced."

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