 (A P) US officials in Mideast to reassure jittery allies over Iran Top Biden administration officials and U.S. senators crisscrossed the Middle East on Monday, seeking to assuage growing unease among Gulf Arab partners over America's re-engagement with Iran and other policy shifts in the region. The trips come as the U.S. and Iran, through intermediaries in Vienna, discuss a return to Tehran's tattered 0000 nuclear deal 