gaza influential exile palestinian politician mohammed dahlan say wednesday palestinians reject future peace talk halt security coordination israel u.s. plan move embassy israel jerusalem dahlan speak via twitter account shortly trump confirm speech washington break longstanding u.s. policy recognize jerusalem capital israel move u.s. embassy city tel aviv palestinian leaders denounce plan move say could dangerous consequences israeli prime minister benjamin netanyahu say immediately trump speech president announcement historic landmark urge countries follow suit call withdrawal absurd endless negotiations israel principle inviolability status jerusalem breach say dahlan elect member palestinian president mahmoud abbas fatah party central committee call end form coordination especially security coordination israel usa add unite arab emirates live since quarrel abbas drive palestinian territories 2011. israel consider jerusalem eternal indivisible capital want embassies base palestinians want capital independent palestinian state city eastern half israel capture 1967 middle east war annex move never recognize internationally 1990s interim peace deal israel palestinians future jerusalem one key issue settle final peace negotiations side last round negotiations collapse 2014 issue israel expansion settlements occupy territory palestinians seek statehood efforts restart fail speech white house trump say administration would begin process move u.s. embassy tel aviv jerusalem something expect take years abbas plan televise speech wednesday response trump address senior palestinian figure dahlan urge exit peace talk trump 's jerusalem move