Claudia Sheinbaum was sworn in as Mexico's first woman president yesterday, taking the oath of office as legislators chanted "Presidenta! Presidenta!" The 62-year-old scientist-turned-politician receives a country with a number of immediate problems,

MEXICO CITY — Claudia Sheinbaum was sworn in Tuesday as Mexico’s first female president, riding the enthusiasm over her predecessor’s social programs but also facing challenges that include stubbornly high levels of violence.

Claudia Sheinbaum will take the oath of office as Mexico’s first female president in more than 200 years of independence, promising to protect an expanded social safety net and fight for the poor like her predecessor,