Watch Kadima Party Chair Tzipi Livni express her views on the Israeli-Palestinian peace process and policy toward Iran.

JACOB WEISBERG: (In progress) -- introduce Tzipi Livni. She went into politics in the 1990s and was elected to the Knesset in Israel in 1999 as a member of the Likud Party. She joined Kadima, which…

Watch Senator John F. Kerry speak about global climate change, its implications for international security, and the diplomatic opportunities it presents.

Elliott Abrams discusses his new book, Realism and Democracy: American Foreign Policy after the Arab Spring.