A member of Hadash, prior to the 2015 Knesset elections the four main Arab parties formed the Joint List alliance.

Prior to the election the Joint List parties had made a rotation agreement, which required the last Ta'al MK to give up their seat for a United Arab List candidate and the final Hadash MK to give up their seat for the next Balad candidate.

[3] At the point at which the rotation was supposed to happen, the United Arab List's Ibrahim Hijazi resigned after only a month in the Knesset, with Atauana and the next Ta'al candidate (Waal Younis in 18th place) were expected to forgo the opportunity to enter the Knesset, allowing Balad's Nivin Abu Rahmon in 19th place on the list to become an MK.

[3] However, Hadash and Ta'al opted not to honour the agreement,[3] with Atauna entering the Knesset on 25 October 2017 as Hijazi's replacement.

[4][5][3] However, he subsequently resigned from the Knesset in February 2018 in what he referred to as "a goodwill gesture in order to preserve the Joint List", and was replaced by Wael Younis of Ta'al.