Andrew Yang has a simple idea for how the DNC can increase diversity at the next debate

Democratic presidential candidate Andrew Yang has a suggestion for the Democratic National Committee.There's been a lot of wariness as the field whittles down about the lack of diversity among the party's top presidential candidates. So far, the only five candidates to have qualified for January's debate in Iowa — Sens. Bernie Sanders (I-Vt.), Elizabeth Warren (D-Mass.), and Amy Klobuchar (D-Minn.), former Vice President Joe Biden, and South Bend, Indiana, Mayor Pete Buttigieg — are