Porath was on the Meretz list in the 1992 Israeli elections for the Knesset. He later changed his political views and became a supporter of the right. He opposed the Oslo accords between PLO and Israel. In the 1996 elections he participated in the campaign of the Likud party and supported Benjamin Netanyahu for prime minister.
Published works in English
- The Emergence of the Palestinian-Arab National Movement, 1918-1929, Cass (1974) ISBN 0-7146-2939-1
- In Search of Arab Unity, 1930-1945, Cass (1986) ISBN 0-7146-3264-3