The pro-business administration of Argentina’s president, Mauricio Macri, will cut its funding of a regional television network started by the Venezuelan government in 2005. The country is pulling out of Telesur, a self-styled leftist alternative to mainstream media, because of a lack of “pluralism” and being shut out of financial decisions, the Communications Ministry in Argentina said. “Argentina was a partner prohibited from sharing our view,” Hermann Lombardi, the communications minister, said in a radio interview. Telesur was a pet project of Hugo Chávez, the former Venezuelan president, who envisioned a strong socialist voice to counteract what he perceived as unbalanced news coverage from major broadcasters like CNN’s Spanish service. In addition to Venezuela, sponsor countries include Bolivia, Cuba, Ecuador and Nicaragua. Relations between Argentina and Venezuela have deteriorated since Mr. Macri’s center-right government took office in December 2015. His predecessor, Cristina Fernández de Kirchner, had maintained strong bonds with Mr. Chavez.