President Obama has nominated people to three key Treasury Department posts as the administration tries to fill out its thin staff.

The White House on Sunday nominated David Cohen for assistant secretary of terrorist financing, Alan Krueger for assistant secretary of economic policy and Kim Wallace for assistant secretary for legislative affairs. All are currently counselors to the Treasury secretary.

Cohen recently was a partner in the WilmerHale law firm, where he focused on civil litigation, white-collar crime, internal investigations and anti-money-laundering issues.

Krueger is a professor of economics and public affairs at Princeton University. And in 1994 and 1995, he was the Labor Department's chief economist.

Wallace previously was a managing director and head of the Washington Research Group at Barclays Capital. Before that, he played the same role for 14 years at Lehman Brothers Inc. And from 1989 to 1994 he was a legislative aide to then-Senate Majority Leader George Mitchell.

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