In the early weeks of President Biden's administration, his aides are beginning to put policy into action, while the U.S. Senate is taking up his nominees.

The top figures in an administration are made up of a combination of Cabinet and high-ranking nominees who require Senate confirmation, and key advisers tapped by the president, who don't require congressional approval.

Below, see who Biden's chosen for:

Note that Biden's nominee to head the Office of Management and Budget, Neera Tanden, withdrew from consideration on Tuesday evening.

National security: These officials would oversee U.S. intelligence and defense, and spearhead relations with world leaders and international coalitions.

Economic policy: As the U.S. economy remains battered by the coronavirus pandemic, these picks would direct Biden's economic and trade policies, and the government's financial oversight.

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