"The Obama administration is fully cognizant of Israel's concerns and greater stakes in the nuclear talks. It is also aware that influential circles in Washington may have even greater sensitivity and sympathy for Israel’s worries. Especially important is the U.S. Congress, whose approval of any agreement reached with Iran will be crucial. This is because almost all that Iran seeks to achieve in any agreement reached—namely, significant sanctions relief—cannot be implemented without the Congress's consent. For the Obama administration, therefore, the Israeli-alliance-management challenge has an important U.S. domestic dimension as well."