She also served as a consultant for the United Nations Development Fund for Women, and was an active member of The Citizens' Revolution.

[1] In 2012, Buendía was nominated to the position of Coordinating Minister of Politics, replacing Betty Tola who had temporarily resigned.

In her first year, she was sanctioned after going against the government and supporting assembly members Paola Pabón and Gina Godoy in a motion to decriminalize abortion in cases of rape in the country.

In the instance of Diario Extra, she filed a complaint and pushed for sanctions on the newspaper due to the publication of a "Lunes Sexi" segment, which she found to be demeaning to women.

[4] In her second term of office on the National Assembly, Buendía has spoken out in favor of Jorge Glas during his suspension from the Vice Presidency.