At first, the PRI refused to accept the nomination and its parliamentary leader, Arturo Núñez Jiménez, declared it illegal. However, the PRI later accepted the fact and Muñoz Ledo answered the state of the union address of President Ernesto Zedillo.
Initially, the PRI initially declined the nomination, but its parliamentary leader, Arturo Núñez Jiménez, stated it was unlawful. The PRI eventually acknowledged this reality, and Muñoz Ledo responded to President Ernesto Zedillo's state of the union address.