Hashomer Hatzair Workers Party
... that the Hashomer Hatzair Workers Party was the sole Zionist party in Mandate Palestine to advocate national rights for Palestinian Arabs?
... that the <b id="mwC7s"><a class="mw-redirect" href="./Hashomer_Hatzair_Workers_Party_of_Palestine" id="mwC7w" rel="mw:WikiLink" title="Hashomer Hatzair Workers Party of Palestine">Hashomer Hatzair Workers Party</a></b> was the sole <a href="./Zionism" id="mwC70" rel="mw:WikiLink" title="Zionism">Zionist</a> party in <a class="mw-disambig" href="./British_Mandate_of_Palestine" id="mwC74" rel="mw:WikiLink" title="British Mandate of Palestine">Mandate Palestine</a> to advocate national rights for <a class="mw-redirect" href="./Palestinian_people" id="mwC78" rel="mw:WikiLink" title="Palestinian people">Palestinian Arabs</a>?