Last summer, in the course of a campaign speech reaching out to pro-Israel groups concerned about his commitment to the Jewish state, then presidential candidate Barack Obama declared, "Jerusalem will remain the capital of Israel, and it must remain undivided." Those words, which he later qualified, may now be coming back to haunt the President as he seeks to restart the moribund Israeli-Palestinian peace process by getting Israel to freeze all construction outside its pre-1967 borders. Israeli Prime Minister Benjamin Netanyahu has drawn a line in the sand over Jerusalem, vehemently rejecting Washington's demand that he halt a construction project...