In wide-open 2020 presidential field, Democrats are road-testing messages - and trying to redefine their party - The future of the Democratic Party has been booking late night TV gigs, waking up for morning drive-time radio and showing up at watering holes in rural counties to try out new material. Joe Biden: the liberal everyman spoiling for a fight with Trump as 2020 looms - The Democratic field is likely to be swollen but the 75-year-old could represent a likable consensus candidate for both wings of the party - Among recent pilgrims to the Arizona ranch of Senator John McCain was Joe Biden.