Their choices: former federal prosecutor Lori Lightfoot and Cook County Board President Toni Preckwinkle.
They were the top two vote-getters -- from a field of 14 people -- in the February 26th election.
WATCH: Part 1 of Newsviews
That day we saw near record-low turnout.
But will this historic runoff election and the struggles facing the city get more voters to the polls on Tuesday?
Catherine Mardikes, Acting President of the League of Women Voters of Chicago and David Greising, President and C-E-O of the Better Government Association are here to talk about it.
WATCH: Part 2 of Newsviews