published numerous essays and books about national and international affairs. In the 1990s, he wrote for La República, a daily newspaper based in San José. His writing has been published by Foreign Affairs Latinoamérica, Frontera Norte, Espacios and Global Governance. His writing has focused on civil society, international relations, and trade. Solís is a member of the Inter-American Dialogue. Political beginnings While still at UCR, Solís joined the National Liberation Party (PLN for its Spanish initials) in 1977. Solís was an adviser to Óscar Arias in the Foreign Ministry, working on the Esquipulas Peace Agreement for which Arias would later win a Nobel Peace Prize. Solís served as Director of International Relations for the PLN. During José María Figueres Olsen's time in office, Solís was ambassador of Central American Affairs. In 2002, Solís followed Rolando González Ulloa as General Secretary of the PLN, a position he resigned from the following year, citing his disappointment with the Alcatel-Lucent bribery scandal that many PLN leaders were involved in. In 2005, he denounced the PLN for irregularities and corruption during party elections, along with a host of former PLN members. Solís went as far as to call the PLN leadership "Napoleonic" and "anti-democratic". He officially renounced his affiliation with the party and returned to academics. After the 2006 election, Solís' name began to come up in PAC circles, particularly at meetings of the "ungroup," an informal gathering of PAC officials, led by former deputy and former Vice President of the National University of Costa Rica Alberto Salom Echeverría. Ottón Solís, one of PAC's founders and three-time presidential candidate, suggested that Luis Guillermo Solís run as a vice presidential candidate in 2010. Luis Guillermo Solis rejected the offer because he was working for the General Secretariat of Ibero-America (SEGIB for its Spanish initials), and employees of SEGIB were not allowed to participate in elections. In 2009, Luis Guillermo Solís began his official affiliation with PAC. He began attending meetings of the "ungroup" in 2010. Within the party, PAC leader María Eugenia Venegas recognized Solís' potential and pushed for him to be elevated within the party. Solís undertook several trips around the country to meet with national and provincial PAC leaders. 2014 presidential campaign Solís announced his candidacy for president on 27 November 2012. In the PAC's primary, he ran against Epsy Campbell Barr, Juan Carlos Mendoza García, and Ronald Solís Bolaños, winning with 35