It's not just age. Most people will accept an old politician if they are still capable. But by the last few years Dianne Feinstein has been downright incapacitated... not remembering where she was or what she was doing, having to have staffers remind her how to vote, even in her personal life she ceded power of attorney to her daughter. So she knows she wasn't well enough to handle her personal affairs, yet she isn't willing to step down from power and wants to keep handling the affairs of the country?