U.S. Sen. Rand Paul of Kentucky is preparing for a high-profile Senate hearing on COVID-19 origins where former White House chief medical advisor Dr. Anthony Fauci will testify, according to WUKY 91.3 FM. The contentious hearing comes days after Paul released a collection of diary entries written by Fauci during the pandemic.

Paul and Fauci have clashed repeatedly over pandemic response policies and the virus's origins, with the Kentucky Republican frequently questioning the scientist's guidance and decisions made during the public health emergency. The diary entries, released ahead of the hearing, are expected to intensify scrutiny into Fauci's actions and communications during the early stages of the COVID-19 crisis.

The Senate committee hearing represents another chapter in the ongoing debate over the pandemic's origins and the government's response. Paul has been a vocal critic of both the federal response measures and theories regarding the virus's emergence, while Fauci has maintained that available evidence supports natural origins while acknowledging certain uncertainties.

The hearing is scheduled for Wednesday, according to the announcement. Both men have prepared extensively for what is anticipated to be a contentious questioning session focused on the administration's decision-making and communications surrounding COVID-19's beginnings.