Tehran (IP) - President-elect Joe Biden told CNN's Jake Tapper on Thursday on foreign policy that it was "hard to tell how much" the recent assassination of Iranian nuclear scientist Mohsen Fakhrizadeh would complicate his dealings with Tehran.

Iran PressAmerica: A senior US administration official said this week that Israel was behind the assassination of the scientist, someone who had been an Israeli target for a considerable time.

"The bottom line is that we can't allow Iran to get nuclear weapons," Biden said before slamming Trump's dealings with Iran, including his 2018 decision to withdraw from the Iran nuclear deal. "He has pulled out to get something tougher, and what have they done? They've increased the ability for them to have nuclear material. They're moving closer to the ability to be able to have enough material for a nuclear weapon. And there are the missile issues."

Biden added: "All those things, I think, are going to be very difficult. But I know one thing: We cannot do this alone. And that's why we have to be part of a larger group, dealing not only with Iran but with Russia, with China and a whole range of other issues."

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