He joined the new Democratic Movement for Change (Dash) party in the mid-1970s, and was elected to the Knesset on its list in 1977. On 14 September 1978 Assad was one of seven MKs to form the Democratic Movement after Dash split up.[1] On 8 July 1980 he and Shlomo Eliyahu left the Democratic Movement to establish the Ahva faction.[1] On 15 June 1981 he moved parties again, this time joining Telem,[1] but lost his seat in the 30 June 1981 elections.