Alongside 34 other members, he was elected to the Sąjūdis Initiative Group (Lithuanian: Sąjūdžio iniciatyvinė grupė), which was tasked to organize and establish the movement.

[6] Radžvilas did not participate in the 1990 Lithuanian Supreme Soviet election and did not become a signatory of the Act of the Re-Establishment of the State of Lithuania on 11 March 1990.

[7] Radžvilas resigned from leadership after the party's defeat in the 1992 Lithuanian parliamentary election, during which it received 1.5% of the votes and won no seats.

[10] In 2017, the director of the Institute of International Relations and Political Science, Ramūnas Vilpišauskas received a student petition requesting that Radžvilas's course "History of the Idea of Europe" be downgraded from a mandatory to an optional course.

Though he claimed that the European Parliament is powerless, he likened it to the Congress of the People's Deputies in the last years of the Soviet Union, and that it will determine the future of the organization.

[14] After the election, Radžvilas founded the National Alliance, with the committee's members forming the core of the party.

Radžvilas initiated protests to defend Kazys Škirpa, leader of the Lithuanian Activist Front in 1941.