My fianceé from the USA is coming to Mexico for Xmas and New years?

Question

She'll be getting her American passport. Does she need any other documents besides that?

She's flying to El Paso, Texas, then we're driving south to Mexico City.

Answer 1

She will need to get a tourist card at the border crossing.  It is good for up tp 180 days and costs about $22.00 USD

Answer 2

All She needs is the Passport.

Answer 3

it depends if shes flying from tj or lax if tj then she should only need an id