In 2009, after fellow party member Michael Ben-Ari won a seat in Knesset on the National Union (Israel) list, Marzel agreed to serve as Ben-Ari's parliamentary aide. Marzel had originally planned to run independently. They eventually agreed not to submit their party's list on their own, and instead placed Ben-Ari on the National Union party list. In 2013, Marzel ran for the Knesset again, this time on the third slot of the newly founded Otzma LeYisrael party, which splintered from National Union. However, the party failed to cross the electoral threshold. Prior to the election, other right-wing parties, such as the Jewish Home party, had rejected including or co-operating with Marzel, considering him to be too outspoken and too far-right.