Rav Dov Landau wrote a letter printed in the Israeli Yated Neeman against participating or joining in zionist institutions There's no permission whatsoever to serve or hold any position in the zionist organizations or vote in their elections as Zionism is a secular movement rooted in kefira and rebellion against מלכות שמים Any involvement in Zionist institutions is a form of support for shmad kefira and Chilul shem shamayim. The voting for knesset members is based on what was decided by our previous leaders ZL and has no connection to the above.
