Why is the Guatemala attorney general going after the new president?

Despite having the support of millions of Guatemalans, newly installed President Bernardo Arévalo has a clear obstacle — the attorney general's office and its leader, Consuelo Porras. Arévalo has made a bold promise to clean up corruption in a Central American nation that for years has kept swaths of the countryside marginalized and impoverished. Experts and critics say Porras has led the charge.