[1] Bana was a member of the youth organization of the far-right Hungarian Justice and Life Party (MIÉP) between 2004 and 2006.

He joined Jobbik in early 2007 and participated in the establishment of its local branch in Vas County.

[1] Bana ran as candidate for MP for Körmend (Vas County 5th constituency) in the 2010 parliamentary election.

[2] Bana unsuccessfully contested for Körmend constituency for the third time in the 2018 parliamentary election, where Zsolt V. Németh was re-elected.

He said, "he wanted the party to operate as a center-right, civic and European force, instead nihilism, populism and internal showdown came under the leadership of Péter Jakab and Márton Gyöngyösi, which is completely unacceptable".

In case of victory, Bana decided to will join the caucus of the LMP – Hungary's Green Party.

[4] In the 2022 parliamentary election, Bana was defeated by Fidesz candidate Zsolt V. Németh, and because he was not on national list of opposition alliance this time, he left parliament after 12 years.