Iran's Khamenei says sanctions failed, no talks with TrumpIran will not open talks with the United States that will only benefit Donald Trump, supreme leader Ayatollah Ali Khamenei said Friday, insisting the US president's sanctions policy had failed. Decades-old tensions between Tehran and Washington have soared in the past year or so, with the sworn enemies twice appearing to come to the brink of war. The tensions have been building since 2018, when Trump withdrew the United States from a landmark nuclear accord and unilaterally reimposed crippling sanctions.