President Trump said the goal of the negotiations with Iran is to achieve "full dismantlement" of Tehran's nuclear program. Why it matters: Trump's remarks in an "Meet the Press" interview aired Sunday are the first time he's publicly announced the ambitious goal since nuclear talks began with Iran a month ago.

Under proposals discussed in rounds of talks in April, Iran would cap enrichment at 3.67%, in line with the JCPOA, all the sources said, including three Iranian officials. Tehran is also open to granting the IAEA expanded access to its nuclear sites, the Iranian sources said.