Monthly review: December 2007.

The article reports updates on the politics and economy in Colombia. President Álvaro Uribe defends himself on the controversial constitutional amendment that will allow him to run for a third term. Germán Vargas Lleras, Juan Manual Santos and Carlos Holguín are some of the presidential candidates. The country's revenue increased by 19.6 percent due to the growth of gross domestic product (GDP) and improvement in tax collection from January-August 2007.