Sen. Dianne Feinstein defended her position following a report that her colleagues are concerned about her memory and ability to serve in the Senate.

Amid questions about Feinstein's health and fitness for the Senate, there are also doubts about the alternative.

SENATE Dianne Feinstein says she won't step down early despite concerning mental health reports Feinstein, 89, has served in Senate for roughly 30 years ...

Sen. Dianne Feinstein, 90, recently ceded financial power of attorney to her daughter, Katherine Feinstein.

Georgetown Law Professor Caroline Fredrickson talks about the implications of Dianne Feinstein's health problems for the work of the Senate and the democratic agenda.

WASHINGTON -- Democratic Sen. Dianne Feinstein defended her position as senior senator representing California following a news report published Thursday that lawmakers she serves with are ...