In one of the most decisive foreign policy statements of his young tenure, Obama said Washington was committed to pursuing “constructive ties” with the Islamic republic and that Tehran could take its “rightful place” in the world if it renounced terror and embraced peace. “My administration is now committed to diplomacy that addresses the full range of issues before us, and to pursuing constructive ties among the United States, Iran and the international community,” Obama said in the message marking the start Friday of Nowruz, the Iranian New Year.