Do Christians and Jews Worship the Same God?

Do Christians and Jews Worship the Same God? Given the support of many Christians for Zionism it might come as a surprise that Christians and Jews do not worship the same God. Christian Zionism is not Christian, and it is not Jewish, it is insulting to Jews because it seeks to hijack Jewish identity, and it is insulting to Christians because it teaches that Jews are God's elect and don't need the cross.