CNN —Mexicans headed to the polls on Sunday to vote in a historic election expected to return the country’s first woman president. More than 98 million voters are registered to cast a ballot in Mexico, and 1.4 million Mexicans are eligible to vote abroad. Mexico's opposition presidential candidate Xochitl Gálvez outside a polling station in Mexico City on June 2, 2024. Outside polling stations, voters told CNN that public security was one of their main concerns. Jorge Luis Plata/ReutersUS officials are closely monitoring the presidential election as it comes at a critical time for the Biden administration.

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Persons: Claudia Sheinbaum, Xochitl, Jorge Álvarez Máynez, Andrés Manuel López Obrador, Sheinbaum, ” Gálvez, Luis Cortes, ”, Jorge Luis Plata, Biden, CNN’s Michelle Velez, Priscilla Alvarez Organizations: CNN, Morena, PAN, ’ Movement, Reuters, Electoral Institute, coy, Republicans, Biden, Homeland Security Locations: Mexico, Mexico City, Yucatán, San Bartolome Quialana