Please answer the following question: Facts:     - birth date: 16 march 1949    - name: marcos carlos cruz martínez    - nationality: mexican    - birth place: frontera , coahuila , mexico    - occupation: teacher and politician   Based on these bullet points, write a short biography describing the life of marcos carlos cruz martínez .
A:
marcos carlos cruz martínez -lrb- born 16 march 1949 -rrb- is a mexican teacher and politician affiliated to the party of the democratic revolution .as of 2014 he served as senator of the lviii and lix legislatures of the mexican congress representing durango and as deputy of the liv , lvi and lxi legislatures .