Laclau was known as a "post-Marxist" theorist. Pertot calls him "una de las principales figuras de la teoría política argentina" ("one of the principal figures of Argentine political theory"). According to the earlier Página/12 article, one of the things for which he is particularly known is a reexamination of "populism" in which he revalues it as an important form of democratic expression.
The original Populists in the United States were definitely a left movement, crypto-socialists we might say, although the movement also sometimes had an anti-Semitic edge. Since then, "populism" in Europe has come to mean specifically rightwing demagoguery. And the more conservative parties in Latin America have tended to use it in a similar stigmatizing way, which has generally been echoed in American press and foreign policy discussions.
Here is an obituary report from TV Pública argentina, Visión 7: Murió Ernesto Laclau 14.04.2014:
This is a video of a presentation of his from last October: Laclau - "Política, corporaciones y construcción democrática" 03-10-13:
At just past 9:30 in this video, he says that what we have to do is "Latin-Americanize Europe."
At just after 15:00, he observes that the struggle against the media conglomerate Clarín is a "fundamental struggle."
After 16:45, he talks about a distinctions between "traditional intellectuals" and "organic intellectuals."
It includes a discussion of the not uncomplicated question of what Peronism is.
Tags: argentina, ernesto laclau