Politics of Costa Rica approved in 1969 limits presidents and deputies to one term, although a deputy may run again for an Assembly seat after sitting out a term. The prohibition was officially recognized as unconstitutional in April 2004, allowing Óscar Arias to run for President a second time in the 2006 Costa Rican presidential elections, which he won with approximately a 1% margin. The President of Costa Rica has limited powers, particularly in comparison to other Latin American Presidents. For example, he cannot veto the legislative budget, and thus Congress is sovereign over the year's single most important piece of legislation. On the
Foreign relations of Costa Rica Peace Agreement and Arias was awarded the 1987 Nobel Peace Prize for his work. Arias also promoted change in the USSR-backed Nicaraguan government of the era. Costa Rica also hosted several rounds of negotiations between the Salvadoran Government and the Farabundo Martí National Liberation Front (FMLN), aiding El Salvador's efforts to emerge from civil war and culminating in that country's 1994 free and fair elections. Costa Rica has been a strong proponent of regional arms-limitation agreements. Former President Miguel Ángel Rodríguez recently proposed the abolition of all Central American militaries and the creation of a regional counternarcotics police force in