(SNews) – The U.S. Senate has launched an investigation into Pfizer after one of the Big Pharma giant’s executives was caught in an undercover video boasting about the company’s disturbing practices.

As Slay News reported, Pfizer’s Director of Research and Development, Strategic Operations Jordon Trishton Walker revealed in an undercover video his pharmaceutical company is using dangerous gain-of-function research to “mutate” COVID-19.

Walker, an mRNA scientific planner, said that Pfizer is “mutating” the virus so the Big Pharma giant can produce and sell more vaccines.

Walker unwittingly blew the whistle on Pfizer to an undercover journalist working for Project Veritas.

Project Veritas published the video of Walker’s comments on Wednesday night.

In response, Sen. Marco Rubio (R-FL) wrote a letter to Pfizer CEO Albert Bourla, demanding an explanation regarding the revelations in Project Veritas’ undercover video footage.

“An investigative report suggests that Pfizer may be conducting gain-of-function research, which it dubs ‘directed evolution’ research to mutate the SARS-CoV-2 virus to create additional, more potent variants and vaccines to combat future variants,” Rubio’s office states.

“This type of research, similar to gain-of-function research, has long been controversial, and is suspected to be the cause of the COVID-19 pandemic.”

Bourla has previously been caught making false claims about the Pfizer vaccines and their impact on public health.

He was also caught in the scandal involving the European Union’s massive purchase of Covid shots.

the president of the European Commission Ursula von der Leyen and Pfizer’s CEO Albert Bourla.

As Slay News reported, it emerged last fall that Bourla secretly cut a massive multi-billion dollar deal with his old friend Ursula von der Leyen, president of the European Commission, to purchase Pfizer vaccines.

The deal provoked a widespread backlash after it was revealed that the taxpayer-funded deal paid for 4.5 billion doses of vaccines for the EU’s 450 million citizens.

As many have pointed out, the deal secured a staggering ten doses for every man, woman, and child in the European Union, including babies.

Project Veritas released footage of Walker on Thursday night, showing the Pfizer executive violently lashing out.

Walker exploded with rage when he realized he had been filmed making damning admissions to the undercover journalism agency.