Rep. Hilda Solis, D-Calif., President-elect Barack Obama's designate as Labor Secretary, listens as she is introduced at a news conference in Chicago, Friday, Dec. 19, 2008. (AP Photo/Gerald Herbert)

In this Aug. 27, 2008 file photo, Rep. Hilda Solis, D-Calif., waves as she speaks at the Democratic National Convention in Denver. Solis, the 51-year-old daughter of a Mexican union shop steward and a Nicaraguan assembly line worker, is in line to be the second Hispanic nominee in Obama's Cabinet. Obama planned to announce her nomination as secretary of labor Friday. (AP Photo/Ron Edmonds, File)

In this Aug. 27, 2008 file photo, Rep. Hilda Solis, D-Calif., waves as she speaks at the Democratic National Convention in Denver. Solis, the 51-year-old daughter of a Mexican union shop steward and a Nicaraguan assembly line worker, is in line to be the second Hispanic nominee in Obama's Cabinet. Obama planned to announce her nomination as secretary of labor Friday. (AP Photo/Ron Edmonds, File)