He became a member of Kafr Qasim council in 1989, serving on it until becoming the head of the southern faction of the Islamic Movement (considered more moderate than its northern counterpart) in 1999.

He spoke out against a meeting of Arab lesbians in 2007, releasing a statement saying that "all respectable people from all communities and streams to stand up against preaching sexual deviance among our women and girls.

In a June 2011 speech he praised Hezbollah for "defeating" Israel and called for a new caliphate to be established with its capital in Jerusalem.

Later in the year he signed a petition along with 105 other MKs calling for the release of the Jewish-American Jonathan Pollard, currently imprisoned by the United States for spying for Israel.

[6] Sarsur retired from politics prior to the 2015 elections, and was given a symbolic 119th place on the Joint List, an alliance of Hadash and several Arab parties.