A woman casts her ballot on the first day of in-person early voting for the 2020 elections in Milwaukee on Oct. 20. With just days left until Election Day, both President Trump and Democratic presidential nominee Joe Biden will head to the Badger State for dueling campaign events on Friday. Kamil Krzaczynski/AFP via Getty Images hide caption
Despite unanswered questions about security and transparency, mobile voting pilots aimed at overseas and military voters move forward in a number of states. Above, wristbands noting "I Voted Today!" are available at Sojourn Community Church in Louisville, Ky., on Election Day this year. John Sommers II/Getty Images hide caption
Ifeolu Claytor, 23, (right) and Gabrielle Jackson, 28, (far left) check out a social media voting video on Esosa Osa's phone. All three are members of the Northeast Ohio Young Black Democrats. Asma Khalid/NPR hide caption
Young voters were a driving force behind Bernie Sanders' campaign in 2016. Spencer Platt/Getty Images hide caption
Ferguson Councilwoman Ella Jones meets with patrons at Drake's Place restaurant. Jones is seeking to become Ferguson's first African-American mayor. Carolina Hidalgo/KWMU hide caption
Maryjane Medina, 18, a first time voter, walks up to polling booth to cast her vote at a polling station set-up in Los Angeles, California. Irfan Khan/LA Times via Getty Images hide caption