Do you know who you're voting for in this week's presidential primary?

Democratic presidential candidate Sen. Bernie Sanders, I-Vt., left, former Vice President Joe Biden, center, and Sen. Elizabeth Warren, D-Mass., raise their hands to speak during a Democratic presidential primary debate hosted by CNN/New York Times at Otterbein University, Tuesday, Oct. 15, 2019, in Westerville, Ohio. (AP Photo/John Minchillo)