[1] Heir to the Khazen political family, he was elected Maronite MP for Kesserwan District in 2000 and was one of the youngest members of the Lebanese Parliament.

He ultimately joined the opposition and participated in the June 2005 legislative elections on the March 14 Alliance force list, creating surprise by breaking his alliance and turning his back on former minister Fares Boueiz.

Nevertheless, he failed to get elected, like all his running mates, against the list led by Michel Aoun.

9 years after the last parliamentary elections, Farid Haykal El Khazen was re-elected to the Lebanese parliament, receiving more than 9000 votes in Kesserwan-Ftouh and Byblos, in the parliamentary elections on May 6, 2018, after he joined forces with Chaker Salame (Kataeb party), Youssef Salameh, Gilberte Zouein and Yolande Khoury in Kesserwan-Ftouh, and Fares Souaid, Mustapha Husseini (Hussein Husseiny sibling) and Jean Hawat under the list of Aanna Al Karar.

He subsequently joined the National Coalition Bloc alongside the Marada Movement and other independent MPs.