Ten Democratic candidates faced off in the second night of the first presidential debate Thursday evening. The four highest-polling candidates on stage dominated discussion, while the other six fought for air time.

Former vice president Joe Biden — who faced the most attacks from fellow candidates — walked away with the highest speaking time. Biden (13.6 minutes), the top-polling candidate coming into the debate, spoke more than four times as long as former tech entrepreneur Andrew Yang (3 minutes). Last night, the difference between the candidates with the most and least speaking time was half as big (10.9 minutes for Sen. Cory Booker vs. five minutes for Washington Gov. Jay Inslee).

[Democratic debate: Harris takes on Biden on race; candidates talk guns, abortion, economy]