A well-known scientist is set to testify before a Senate committee. This appearance is expected to be contentious. The scientist has previously discussed various health threats on Capitol Hill numerous times.

The committee is chaired by a senator who has been critical of the government's pandemic response. Further details about the upcoming testimony are available from CNN. The scientist's testimony is likely to draw attention due to past disagreements with the committee chairman.

For more information, readers can refer to the original report from CNN.