The Smithsonian Institution has tapped Michael Govan and Roger W. Ferguson to serve as citizen regents. (AP Photo/Manuel Balce Ceneta)

The Smithsonian Institution has asked art museum director Michael Govan and economist Roger W. Ferguson to be members of its governing board.

The U.S. Senate voted Monday to approve the nominations of Govan and Ferguson to be citizen regents of the Smithsonian. If approved by the House of Representatives and the president, Govan and Ferguson will replace Shirley Ann Jackson, president of the Rensselaer Polytechnic Institute, and developer Robert Kogod. Both had served two terms.

The Senate also voted to reappoint Steve Case to a second, six-year term.

Govan is the director of the Los Angeles County Museum of Art, a position he has held since 2006. Prior to that he led the Dia Art Foundation in New York City.

Ferguson is the chief executive of TIAA, a financial services company. He served as vice chairman of the Board of Governors of the Federal Reserve from 1999 to 2006.

The Smithsonian’s 17-member Board of Regents includes the chief justice of the United States, the vice president, three members of the House, three members of the Senate and nine citizens. David Rubenstein serves as chairman.

(This post has been updated.)