2020 might be calling his name. but will he answer? should he answer? a cnn poll shows most democrats want former vice president joe biden to jump into the white house race. but could biden's burden be his political part? cnn's arlette saenz reports. >> reporter: if he jumps into the 2020 race, joe biden's career of more than 40 years in washington could be seen as a blessing or a curse. >> i was in the senate a long time. >> reporter: six terms in the senate. plus two as vice president. biden's record is ripe for scrutiny. one area set to come into the spotlight, his time as chair of the senate judiciary committee. when he championed the 1994 crime bill. >> people are prisoners in their neighborhoods. they're prisoners in their house. this is straight flat proof. violence in america is epidemic. >> reporter: decks later,