LISTEN LIVE: Biden addresses AIPAC, expected to reassure on Iran policy

President Obama has repeatedly vowed to prevent Iran from gaining a nuclear weapon. But recent events — the bruising 2012 election, the bitter fight over Chuck Hagel's nomination, a new proposed deal with Iran — have raised concerns among some Israel supporters.

Less than a month before Obama's first official visit to Israel, Biden has been chosen to put any lingering concerns to rest. The three-day conference of the American Israel Public Affairs Committee (AIPAC), an annual opportunity for top U.S. and Israeli leaders to show a united front before 13,000 activists, is seen as the ideal venue.

“Vice President Biden will make clear that the support for Israel, and the U.S.-Israeli relationship, and the goal of preventing Iran from gaining a nuclear weapon, is shared by both parties,” said Aaron Keyak, the executive director of the National Jewish Democratic Council.

Read more on The Hill's Global Affairs blog.