Iran is preparing a counter-proposal after rejecting the U.S. nuclear deal, prompting President Trump to caution that "time is running out."

President Donald Trump boasted of the United States’s stockpile of weapons while warning that Iran would not be allowed to enrich uranium, a major sticking point in negotiations. Iranian nuclear negotiations appear to be losing momentum,

Israel’s attack on Iran was long in the making – the result of years of meticulous planning by Israel and days of high-stakes talks between Tel Aviv and Washington, officials told CNN.