that is all the time we have for stanford sociology professor tomas jimenez. thank you so much. really appreciate the conversation. >> it was a pleasure. thanks for the opportunity. >> we'll take a sh of the popular will than traditional voting. that's because it is the system san francisco voters will use to choose their mayor. it is also the system that produced the oakland mayor, who is now facing a recall. so we want to offer some tips on how to fill out a ranked choice voting ballot to reflect the fullness of your preferences and to look at its pros and cons. joining us live now to offer guidance, jason mcdaniel, associate professor of political science at san francisco state university. professor mcdaniel, thanks for your time. >> thanks for having me. >> correct me if i'm wrong, but i think about 45 u.s. cities currently use ranked choice voting right, including san francisco, oakland, and berkeley. >> that's about right. okay, yeah, that's about right. >> okay. based on your research, what are the benefits of ranked choice voting versus the traditional pick one approach?