This article has Kobach claiming that Pfizer declined to participate with Operation Warp Speed.
Pfizer in fact signed a contract with Warp Speed in July 2020 for 1.9 billion. They were one of 13 companies that participated.
“’While other pharmaceutical companies did take federal funds to develop a vaccine, Pfizer declined to do so, the only one of the major prospective developers to go it alone.
At the same time, on July 22, Pfizer agreed to a $1.95 billion deal with the Trump administration “for large-scale production and nationwide delivery of 100 million doses of a COVID-19 vaccine in the United States following the vaccine’s successful manufacture and approval.’”