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Exclusive: One-on-one with Iran's president: Extended Interview

In an exclusive interview with Lester Holt in Tehran, Iran's president shares his message for President-Elect Trump ahead of his inauguration, whether Iran is open to direct talks with the U.S. over the future of its nuclear program, and responds to the alleged plot to assassinate Donald Trump. President Masoud Pezeshkian said Iran never plotted to kill Trump. The interview was conducted with a government interpreter translating in real time, and NBC News reviewed the translation independently. NBC News' Lester Holt reports.