Of all the parties in the Parliament, the Left Alliance is the strongest supporter of voting for NATO membership, says the opinion poll STT.
The agency e-mailed the leaders of nine political parties about their position on Finland’s accession to NATO.
After Russia’s attack on Ukraine, public opinion seems to have turned behind seeking membership in the military alliance, with 53 percent in favor of NATO, according to Yle’s recent poll.
NATO rules require candidate countries to show the support of their people.
The Left Alliance said that before joining the alliance, a referendum should be held that would be supported by a majority of the people.
Director of the Social Democrats, Antti Lindtmansaid anything "security solutions must be anchored in broad human support."
According to the Center, membership in the organization would require a "a significant majority."
Earlier this week, U.S. foreign policy claimed that Finns would "misunderstood" The purpose of NATO.
BTI conducted its survey from Thursday to Friday this week.