2020 Democrats challenge Biden's call for calm at California gathering

Several 2020 Democratic presidential candidates took advantage of early front-runner former Vice President Joe Biden's absence from a California state party gathering on Saturday evening. Biden was reportedly the only prominent candidate not in attendance, as he was campaigning in Ohio on Saturday. Sen. Elizabeth Warren (D-Mass.), one of 14 candidates at the event, seemingly took a jab at the former vice president who had previously preached calm in the Democratic Party and said once President T...