Radical Civic Union politicians

Raúl Ricardo Alfonsín (Spanish pronunciation: [raˈul alfonˈsin] ; 12 March 1927 – 31 March 2009) was an Argentine lawyer and statesman who served as President of Argentina from 10 December 1983 to 8 July 1989. He was the first democratically elected president after the 7-years National Reorganization Process. Ideologically, he identified as a radical and a social democrat, serving as the leader of the Radical Civic Union from 1983 to 1991, 1993 to 1995, 1999 to 2001, with his political approach being known as "Alfonsinism".
Born in Chascomús, Buenos Aires Province, Alfonsín began his studies of law at the National University of La Plata and was a graduate of the University of Buenos Aires. He was affiliated with the Radical Civic Union (UCR), joining the faction of Ricardo Balbín after the party split. He was elected a deputy in the legislature of the Buenos Aires province in 1958, during the presidency of Arturo Frondizi, and a national deputy during the presidency of Arturo Umberto Illia. He opposed both sides of the Dirty War, and several times filed a writ of Habeas corpus, requesting the freedom of victims of forced disappearances, during the National Reorganization Process. He denounced the crimes of the military dictatorships of other countries and opposed the actions of both sides in the Falklands War as well. He became the leader of the UCR after Balbín's death and was the Radical candidate for the presidency in the 1983 elections, which he won.
After becoming president, Alfonsín sent a bill to Congress to revoke the self-amnesty law established by the military. He established the National Commission on the Disappearance of Persons to investigate the crimes committed by the military, which led to the Trial of the Juntas and resulted in the sentencing of the heads of the former regime. Discontent within the military led to the mutinies of the Carapintadas, leading him to appease them with the full stop law and the law of Due Obedience. He also had conflicts with the unions, which were controlled by the opposing Justicialist Party. He resolved the Beagle conflict, increased trade with Brazil, and proposed the creation of the Contadora support group to mediate between the United States and Nicaragua. He passed the first divorce law of Argentina. He initiated the Austral plan to improve the national economy, but that plan, as well as the Spring plan, failed. The resulting hyperinflation and riots led to his party's defeat in the 1989 presidential elections, which was won by Peronist Carlos Menem.
Alfonsín continued as the leader of the UCR and opposed the presidency of Carlos Menem. He initiated the Pact of Olivos with Menem to negotiate the terms for the 1994 amendment of the Argentine Constitution. Fernando de la Rúa led a faction of the UCR that opposed the pact, and eventually became president in 1999. Following de la Rúa's resignation during the December 2001 riots, Alfonsín's faction provided the support needed for the Peronist Eduardo Duhalde to be appointed president by the Congress. He died of lung cancer on 31 March 2009, at the age of 82, and was given a large state funeral.

Carlos Sylvestre Begnis (30 August 1903 – 22 September 1980) was a medical doctor and politician, born in Alto Grande, a village near Bell Ville, Córdoba province in Argentina. He was a rural physician and worked as a surgeon in hospitals of the city of Rosario, province of Santa Fe.
He entered politics through the Radical Civic Union. In 1958 he was elected governor of Santa Fe, following a period of de facto military rule (after the Revolución Libertadora, which had ousted president Juan Perón three years before). He became a part of the Intransigent Radical Civic Union (UCRI), and then formed part of the leadership of the Movement for Integration and Development (MID). His term was ended by a federal intervention.
In the 1970s, Sylvestre Begnis moved to the Justicialist Party (Peronism), and was elected governor again in 1973 (Argentina had just emerged from seven years of military dictatorship). The Hernandarias Subfluvial Tunnel, which joins Santa Fe and Entre Ríos under the Paraná River, was built during his administration, and then officially renamed after him and Entre Ríos governor Raúl Uranga. The Brigadier Estanislao López Highway, linking Rosario and Santa Fe (the two largest cities in the province), was also built at this time. Sylvestre Begnis followed the policies of desarrollismo, sponsored by the national government of president Arturo Frondizi, devoting a large share of the provincial budget to public works (schools, roads, electric power lines, hydraulic works).
Sylvestre Begnis again could not complete his term, being removed from office in 1976 as a result of the military coup that started the dictatorship of the National Reorganization Process. He died of acute leukemia in 1980, at the age of 77.
His son Juan Héctor, also a politician, was a candidate for vice governor and served the Justicialist government of Jorge Obeid as Minister of Health, and is a national deputy for the Front for Victory. He chairs the Health Committee of the Argentine Chamber of Deputies. In 2007 he campaigned to be mayor of Rosario.