washington democrat dianne feinstein old current u.s. senator say monday run re-election next year home state california post twitter feinstein 84 say lot end gun violence combat climate change access healthcare feinstein first elect senate 1992 top democrat senate judiciary committee first woman hold role also senior member senate select committee intelligence first woman lead panel 2009 2015. feinstein lead advocate strict gun safety laws decades last week introduce legislation would ban so-called bump stock devices use attack kill 58 people outdoor concert las vegas oct. enable rifle use like automatic weapons feinstein old u.s. senator among several octogenarians include republicans chuck grassley orrin hatch richard shelby jim inhofe pat roberts john mccain democratic senator feinstein 84 'all re-election