CNN) - Mexican voters are heading to the polls Sunday in a historic election that could reshape the country.
Voters will choose a new president and make decisions on more than 18,000 other posts that are up for grabs, including a new Congress, several governorships and municipal seats, according to the Mexican Election Institute.
The election also stands to impact the country's relationship with its neighbor to the north.
Mexico's new president will have to deal with his US counterpart, President Donald Trump, along with his threats to pull out of the North American Free Trade Agreement and his calls for the construction of a border wall.
To some degree the election has become a referendum on Mexico's political elite and its economic direction, as well as the tenure of the current president, Enrique Peña Nieto, who is limited to a single six-year term. Peña Nieto has been criticized by many who say he failed to adequately deal with crime, corruption and economic inequality.
Some 89 million people are eligible to vote in Sunday's elections, and millennials and the so-called Generation Z are expected to play a key role in defining the country's future.
Younger voters have grown up surrounded by rampant corruption and drug violence. They represent nearly half of all the eligible voters and nearly 13 million of them would be voting for the first time, electoral officials said.
