Zoabi joined Balad in 2001. She co-founded the
NGO ''I'lam Media Center for Arab Palestinians in Israel'' in 2003, and was its general director until she resigned shortly before the
2009 election to focus on her political career. She ran for Knesset as a Balad candidate in
2006, but was too low on the party's
electoral list to win a seat. Zoabi called the sponsors of the request "fascists" and said that "for whoever does not want citizens to have free elections, I am one of many targets". After hearing the case, the Central Elections Committee (CEC) disqualified Zoabi in a 19–9 vote. However, the
Supreme Court of Israel unanimously overturned the decision and allowed her to run, and she was subsequently re-elected. Following the election, Likud MK
Danny Danon initiated a bill dubbed the "Zoabi Law" in February 2013, to amend the
Basic Laws to make it harder for the Supreme Court to overturn a decision by the CEC, which failed to pass. She faced another attempt prior to the
2015 election, wjen the CEC voted 27–6 to disqualify her from running in the election. However, the Supreme Court overturned the ruling in an 8–1 decision. She retired from national politics prior to the
April 2019 election, although she was given a symbolic 113th slot on the joint list of Balad and the
United Arab List. ==2010 Gaza flotilla==