WASHINGTON (AP) — For President Barack Obama, the Iranian nuclear deal he covets now depends in part on his ability to keep a lid on hard-liners on Capitol Hill and an array of anxious allies abroad, including Israel, the Persian Gulf states and even France. Each of the wary parties is guided in some measure by their own domestic political interests. But they also share concerns that Obama may want a breakthrough with Iran so badly that he is willing to accept a bad deal. There is little question Obama desires a deal with Iran, which could give him a boost during a shaky stretch in his presidency. Successful negotiations with Iran could also validate Obama's long-held belief that the U.S. should be willing to talk to adversaries without preconditions.