She has been a Councillor on Fabero City Council, a Regional Councillor in El Bierzo, an MP for the province of Leon in the VI and VII Legislatures 1996/2004, holding, among other posts, that of Member of the Budget Committee. She was the Secretary of State for Social Policy 2004-2009 at the Ministries of Employment and Education, where she piloted the implementation of the Personal Autonomy and Care for Dependant Persons Act. She was the Regional Representative of the Government in the Region of Madrid, from 2009 to 2011. She was a regional MP in the IX Legislature of the Madrid Assembly 2011-2015, having held, among other posts, that of 2nd Deputy Speaker of the Assembly and Chairperson of the Budget Committee. She was the Director-General of Recruitment and Military Teaching at the Ministry of Defence, from 2018 to 2020. She currently holds the post of Undersecretary of State for Defence.