Solis, who is the daughter of Mexican and Nicaraguan immigrants, has been the only member of Congress of Central American descent. She just won a fifth term representing heavily Hispanic portions of eastern Los Angeles County and east LA.
Obama planned to announce Solis' selection on Friday along with his selection of Republican Rep. Ray LaHood of Illinois for transportation secretary. The official spoke on conditions of anonymity because an announcement has not been made yet. A call to Solis's office was not immediately returned.
Solis, in 1994, was the first Latina elected to the California Senate, where she led the battle to increase the state's minimum wage from $4.25 to $5.75 an hour in 1996.
In Congress, she wrote a measure that authorized $125 million for work force training programs in areas such as energy efficiency retrofitting and "green building" construction.
http://www.huffingtonpost.com/2008/12/18/hilda-solis-labor-secreta_n_152139.html