Former Biden aide Annie Tomasini became the third witness to invoke their Fifth Amendment right to avoid self-incrimination in the House probe of an alleged cover-up of President Biden’s mental decline in office. Here’s what you need to know about the Biden cognitive decline investigation:

The third Fifth Amendment invocation

Tomasini follows pattern of witnesses refusing to testify:

The autopen investigation

House examines unauthorized use of mechanical signature:

Comer’s statement

Oversight chairman sees pattern of criminal liability concerns:

Tomasini’s background

Longtime Biden aide with extensive experience:

The specific questions

Tomasini pleaded Fifth to multiple key inquiries:

The committee’s frustration

Comer criticizes witnesses for refusing to answer basic questions:

The interview schedule

Over dozen former Biden staffers scheduled for testimony:

Tanden’s testimony

Staff secretary provided limited information about autopen use:

The previous Fifth Amendment cases

Two other witnesses refused to testify:

The Democratic defense

Texas congresswoman defends witnesses’ rights:

Trump’s decision-making claims

Current president questions Biden’s role in key policies:

Biden’s denial

Former president issued statement defending his role:

The White House investigation

Current administration launches separate autopen probe:

The Trump administration policy

Current White House claims different approach to signatures:

Read more:

• Another ex-White House aide, Annie Tomasini, takes Fifth in House probe

This article is written with the assistance of generative artificial intelligence based solely on Washington Times original reporting and wire services. For more information, please read our AI policy or contact Ann Wog, Managing Editor for Digital, at awog@washingtontimes.com

The Washington Times AI Ethics Newsroom Committee can be reached at aispotlight@washingtontimes.com.