Yolanda Sánchez, the female mayor of Cotija, was killed by gunmen shortly after Claudia Sheinbaum's historic presidential victory.

Sánchez had received death threats and opposed organized crime groups, resulting in her being shot multiple times and dying along with her bodyguard.

This murder underscores the pervasive violence against politicians in Mexico, with over 20 candidates murdered since September.

Sánchez's death poses a significant challenge for President-elect Claudia Sheinbaum as she tackles violent cartels, political violence, and other issues.

Claudia Sheinbaum, a progressive climate scientist and former mayor of Mexico City, won the presidential election with nearly 58 percent of the vote.

Sheinbaum's historic victory makes her the first woman and Jewish person to serve as Mexico's president.

She promises to continue current social policies, propose new initiatives such as a national care system, and expand the military's role in domestic security.

Her term begins on October 1, amidst a violent campaign season marked by numerous candidate murders and kidnappings.

The future of Mexico's politics hinges on Sheinbaum's leadership following the end of her mentor's term.