The defeat of the Republicans made it difficult for Trump to make a decision about Iran; 4 options before the White House.
The results of the American mid-term elections and the Israeli parliamentary elections faced new complications in the calculations of Washington and Tel Aviv regarding Iran; So the defeat of the Republicans and the loss of the majority of Congress reduced Trump's maneuvering power to make decisions regarding Iran, and the results of the Knesset elections also reduced Netanyahu's influence on the process of these decisions.