Scientists are questioning a $433 million government contract for a smallpox drug they say the country doesn’t need, amid concerns over the way the project was secured for a firm tied to a Democratic donor.

The Los Angeles Times reported over the weekend that U.S. officials took unusual steps to award the contract to Siga Technologies. Democratic donor Ronald Perelman has the controlling share of the company

The article cited emails showing the Obama administration replaced the lead negotiator on the project following complaints from Siga — Siga was apparently concerned about the government’s objections to how much money Siga would make off the deal.