Susan Rice, the U.S. ambassador to the United States, speaks to the media at the United Nations following Security Council Consolations after North Korea announced they have conducted a third nuclear test on February 12, 2013 in New York City

Susan Rice, the U.S. ambassador to the United States, speaks to the media at the United Nations following Security Council Consolations after North Korea announced they have conducted a third nuclear test on February 12, 2013 in New York City

*Susan Rice, currently the U.S. Ambassador to the United Nations, will replace Tom Donilon as President Obama’s national security adviser – a position not subject to Senate confirmation.

Rice has been at the center of a firestorm over early accounts of the attacks on the U.S. Consulate in Benghazi, Libya, which later proved to be incorrect. Rice came under intense fire from Republicans for initially characterizing the Sept. 11 assault as a spur-of-the-moment response to a crude anti-Muslim film. The Obama administration later said the violence was a planned terrorist attack.

Rice dropped out of the running to become Secretary of State in December – a post that was later filled by John Kerry.

She will be formally introduced in her new role by President Barack Obama at 2 p.m. ET today.

A White House official says Samantha Power, a former special assistant to the president on the National Security Council, will be nominated to replace Susan Rice as the U.N. ambassador.