0Feinstein: Petraeus Resignation a 'Heartbreak'On 'Fox News Sunday,' Sen. Dianne Feinstein said Gen. David Petraeus did the right thing by stepping down. Still, she called him a 'great leader' and admitted that 'this is very, very hard.'Updated Apr. 21, 2017 2:56PM EDT / Published Nov. 11, 2012 11:28AM EST Cliff Owen / AP Photo