A well-known scientist is set to testify before a Senate committee. The scientist, Dr. Anthony Fauci, has testified before Congress numerous times in his career, speaking about infectious disease threats.

His upcoming testimony is expected to be contentious, particularly with Senator Rand Paul, who chairs the committee. Dr. Fauci has a long history of testifying before Congress, with approximately 250 appearances over the course of his career.

Further details about Dr. Fauci's testimony and his history with Senator Paul are available from the source, including information about the committee he is set to appear before and the topics he has spoken about in the past.