Claim: Mexico City is not in a federal republic.
Evidence: Mexico City , or the City of Mexico -LRB- Ciudad de México , -LSB- sjuˈða ðe ˈmexiko -RSB- ; abbreviated as `` CDMX '' -RRB- , is the capital and most populous city of Mexico.
Mexico -LRB- México , -LSB- ˈme.xi.ko -RSB- , modern Nahuatl -RRB- , officially the United Mexican States -LRB- -LSB- Estados Unidos Mexicanos , links = no -RSB- , -RRB- , is a federal republic in the southern portion of North America.