Claudia Sheinbaum Pardo has been sworn in as Mexico’s first woman serving the presidency during a solemn ceremony in Congress.

“I swear to uphold and enforce the Political Constitution of the United Mexican States … and to loyally and patriotically carry out the office of president of the republic that the people have conferred upon me,” Sheinbaum said with her hand raised in a sign of oath.

Sheinbaum, 62, won the presidential elections in June with a large majority of the votes to become the first woman to assume the office.