There is no evidence that Dr. Fauci approved the project in which some beagles were euthanized.
The WCW group published photos of the experiments alleging NIAID had granted $375,000 in funding for a study in Tunisia "to drug beagles and lock their heads in mesh cages filled with hundreds of infected sand flies." The photos of beagles, shared widely online, were obtained through Freedom of Information Act requests and published in the journal PLOS Neglected Tropical Diseases.
According to PolitiFact, NIAID admitted that it did fund a separate project in Tunisia to study a vaccine to prevent leishmaniasis but denied funding the project in which sedated beagles had their heads placed in mesh cages. The PLOS also issued a correction writing that it erroneously listed the National Institutes of Health as a source of the project funding.
Further, NIH contends that the funds are approved for testing under federal regulations established to protect animal welfare.
On verifying, we found that the NIH funded two more projects to research beagles, allocated by Congress. But there is no evidence that Dr. Fauci himself approved the funds. Hence we mark the claim as false.