And for what other reason than the Jewish Lobby does the preference of Israel matter in regards to the election?
This is actually a rather annoying, though extremely widespread, misconception: the depth of U.S. support for Israel is not primarily due to the importance of the "Jewish Lobby" or Jewish pressure groups. These days it has far more to do with support for Israel among Evangelicals who see it as the key to Christ's return and the fulfillment of End Times Prophecies. Islamophobia and anti-Arab racism (rather than specific support for Jews or Israelis) are major factors as well.It's a combination of both;
Republicans mainly support Israel for the evangelicals (as well as the Sheldon Adelsons of the world), but Democrats, whom evangelicals won't vote for anyway, mainly support Israel because of the Israeli/"Jewish" lobby.