Mexicans will elect a new president this weekend. Here's what to know.

Mexico is preparing for its largest-ever election this weekend. More than 20,000 positions are up for grabs, including local, state and congressional offices, as well as the office of the president. It's almost certain that voters will elect their first female head of state. Host Carolyn Beeler speaks with The World's Mexico's correspondent Tibisay Zea about the issues in this election.