Sobisch was born in Buenos Aires and moved to Neuquén as a young boy with the military family of his father, Carlos Sobisch. He studied in Neuquén and Buenos Aires, then moved to Trelew, Chubut as a young man to work in a friend's design company. He became a graphics operator and typesetter, later establishing his own company. He completed his military service in Sarmiento, Chubut. Sobisch assisted his Peronist father in founding the Neuquén People's Movement in 1961, following him into politics. The party won the Neuquén city elections in 1983 after the return of democracy and Sobisch became mayor, taking took a leading role in renewing the party. He also led the Club Atlético Independientefootball club from 1971. Sobisch was elected governor of the province in 1991, serving until 1995. He took over the leadership of the party in 1997. He won again as governor in 1999 and 2003, with 57% of the vote, his term expiring in 2007 when he stepped down. Sobisch led the founding of the Movement of the United Provinces, a new, conservative party, and was the movement's candidate for the Presidency in 2007. He had previously formed a centre-right alliance with Mauricio Macri, although it did not survive Macri's alliance with Ricardo López Murphy ; López Murphy was a conservative presidential candidate in both 2003 and 2007. Sobisch is also seen as an ally of former Justicialist Party President Carlos Menem and had hoped to become the candidate of those Peronists opposed to President Néstor Kirchner. Following a scandal in his home province, concerning the April 7 death of local teachers' union member , Sobisch was largely shunned by disgruntled Peronists who mainly backed Alberto Rodríguez Saá. Sobisch was, however, backed by crime victims' rights activistJuan Carlos Blumberg. In 2007, Sobisch and his running mate, Jorge Asís, gained 284,161 votes in the presidential elections, amounting to 1.56% of the national vote, in sixth place. His wife of 38 years, Liliana Planas, died on December 22, 2009, after falling from their ninth story Neuquén apartment building, in what local coroners determined to be a suicide.
