The South American exchanging coalition Mercosur has censured President Trump for saying he was thinking about military activity in the Venezuela emergency.
Argentina said exchange and strategy were the main approaches to advance vote based system in Venezuela.
Venezuela's outside priest said Mr Trump's words had been unfriendly and impolite and gambled destablising Latin America.
Rough showings since April have left more than 120 individuals dead.
President Nicolas Maduro's new constituent get together - which can rework the constitution and could abrogate the resistance controlled parliament - has been broadly reprimanded as against law based.
Mercosur - which includes the region's largest economies Argentina and Brazil as well as Paraguay and Uruguay - indefinitely suspended Venezuela's membership last week.
Other Latin American countries also condemned Mr Trump's comments, including Mexico, Colombia and Peru, which said Mr Trump's threat was against UN principles.
Peru has been a fierce critic of Mr Maduro's government. On Friday Peru expelled Venezuela's ambassador after Caracas sent an "unacceptable" response to regional condemnation of its new constituent assembly.
Peruvian President Pedro Pablo Kuczynski has urged Mr Maduro to resign and called him a dictator.